Knowledge Test 8 grade

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1.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


1. _________________
2.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


2. _________________
3.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


3. _________________
4.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


4. _________________
5.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


5. _________________
6.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


6. _________________
7.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


7. _________________
8.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


8. _________________
9.
2 points
VOCABULARY

1 Complete with these words.

curtains desk envelope keys matches mirror rug saucepan vacuum cleaner

1 It’s dark now. Go and close the _____________ in your room.
2 Mom can’t find her car _____________.
3 I cook with this _____________. It’s made of recycled metal.
4 I’ve written a letter to Sam, but I can’t find an _____________ to put it in.
5 Do you have some _____________ to light the fire?
6 I have something in my eye. Is there a _____________ I can look in?
7 Dad is sitting at his _____________ in the office and doing his work.
8 The floor in this room feels a little cold. I think it needs a _____________.
9 They didn’t use to clean carpets with a _____________ 200 years ago.


9. _________________
10.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

1. ______________
11.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

2. ______________
12.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

3. ______________
13.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

4. ______________
14.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

5. ______________
15.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

6. ______________
16.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

7. ______________
17.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

8. ______________
18.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

9. ______________
19.
2 points
GRAMMAR

Complete the sentences with the simple past or the correct form of used to and the verbs in parentheses.

1 When I was young, I ________________ (go) camping three times.
2 Carla ________________ (visit) six different countries while she was at college.
3 Dad ________________ (not like) classical music, but now he really enjoys it.
4 I ________________ (know) that paper was invented in China until you told me just now!
5 They ________________ (watch) the show once to see what it was like.
6 He ________________ (not go) to the movies before he went to the restaurant last night.
7 I ________________ (play) the violin at school, but I don’t now.
8 They ________________ (buy) new clothes for the party tomorrow.
9 Did you ________________ (invent) games and stories when you were young?
10 He ________________ (do) any sports, but now he plays soccer every week.

10. ______________
20.
2 points
READING

Read the text. Then read the sentences and choose True or False.

When 17-year-old Andrew Cowan from the U.K. made a remote-controlled robot for an exam project, he had no idea how successful it would be.

Andrew invented the recovery robot to help firefighters and other emergency and rescue workers. The robot is designed to go into buildings that are falling down or on fire. It can help emergency workers find out if anyone is inside the building and needs help, without having to go into the building themselves.

The invention made such a good impression with the exam judges that Andrew was chosen to represent his country in a European contest for young scientists in Portugal in 2010.

Before Andrew was sent to Portugal, the robot had already won a number of prizes and sponsorship deals. A few months earlier, in March 2010, Andrew had been given the engineering and technology prize in a major national contest for science and engineering, as well as the Siemens prize. When creating this robot, Andrew received sponsorship for the project from several companies; he contacted the companies, who agreed to give him some of the parts he needed for the robot, such as the robot’s heat sensor. Andrew placed their company logos on the robot in return for sponsoring the project.

Andrew’s robot is fitted with firefighting equipment, plus a camera, and a sensor, and this caught the attention of some large companies. The electronics company Siemens is going to sponsor him to study at college, while other important electronics companies have offered him jobs for when he graduates from college.


1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


1. ___________
21.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


2. ___________
22.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


3. ___________
23.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


4. ___________
24.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


5. ___________
25.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


6. ___________
26.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


7. ___________
27.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


8. ___________
28.
2 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


9. ___________
29.
4 points
READING

Read the text. Then read the sentences and choose True or False.

1 Andrew Cowan’s robot was his school exam project.
True / False

2 He invented it to help doctors.
True / False

3 Thanks to the robot, firefighters have to go into buildings that are on fire.
True / False

4 Andrew was chosen to represent his school in a contest for young scientists.
True / False

5 Andrew went to Portugal in 2011.
True / False

6 Before the contest in Portugal, Andrew’s robot had already won a lot of prizes.
True / False

7 A number of companies had given money and equipment to help Andrew with his project.
True / False

8 In return for sponsorship, their telephone numbers were put on the side of the robot.
True / False

9 Siemens offered to sponsor Andrew to go to college.
True / False

10 He was offered jobs by some important electronics companies.
True / False


10. ___________
30.
4 points
LISTENING

Listen to Anna and Brad talking about inventions. Choose the correct option, A or B.

1 Brad thinks the most important invention was the ___.
A light bulb B paraffin lamp

2 In the past, most masterpieces were created by ___.
A firelight B candlelight

3 Gas was used for lighting lamps in the ___.
A 19th century B 17th century

4 Anna thinks the telephone, the ___, and the car were probably the most important inventions.
A radio B television

5 Anna thinks that penicillin is important because it has ___.
A saved so many lives B saved her life

1. ________________
31.
2 points
LISTENING

Listen to Anna and Brad talking about inventions. Choose the correct option, A or B.

1 Brad thinks the most important invention was the ___.
A light bulb B paraffin lamp

2 In the past, most masterpieces were created by ___.
A firelight B candlelight

3 Gas was used for lighting lamps in the ___.
A 19th century B 17th century

4 Anna thinks the telephone, the ___, and the car were probably the most important inventions.
A radio B television

5 Anna thinks that penicillin is important because it has ___.
A saved so many lives B saved her life

2. ________________
32.
4 points
LISTENING

Listen to Anna and Brad talking about inventions. Choose the correct option, A or B.

1 Brad thinks the most important invention was the ___.
A light bulb B paraffin lamp

2 In the past, most masterpieces were created by ___.
A firelight B candlelight

3 Gas was used for lighting lamps in the ___.
A 19th century B 17th century

4 Anna thinks the telephone, the ___, and the car were probably the most important inventions.
A radio B television

5 Anna thinks that penicillin is important because it has ___.
A saved so many lives B saved her life

3. ________________
33.
4 points
LISTENING

Listen to Anna and Brad talking about inventions. Choose the correct option, A or B.

1 Brad thinks the most important invention was the ___.
A light bulb B paraffin lamp

2 In the past, most masterpieces were created by ___.
A firelight B candlelight

3 Gas was used for lighting lamps in the ___.
A 19th century B 17th century

4 Anna thinks the telephone, the ___, and the car were probably the most important inventions.
A radio B television

5 Anna thinks that penicillin is important because it has ___.
A saved so many lives B saved her life

4. ________________
34.
4 points
LISTENING

Listen to Anna and Brad talking about inventions. Choose the correct option, A or B.

1 Brad thinks the most important invention was the ___.
A light bulb B paraffin lamp

2 In the past, most masterpieces were created by ___.
A firelight B candlelight

3 Gas was used for lighting lamps in the ___.
A 19th century B 17th century

4 Anna thinks the telephone, the ___, and the car were probably the most important inventions.
A radio B television

5 Anna thinks that penicillin is important because it has ___.
A saved so many lives B saved her life

5. ________________
35.
22 points
WRITING
10 Choose one of these inventions. Describe what life was like before the invention.
car cell phone clock Internet paper plastic telephone television train wheel

Think of these things:

• What did people use to do before?
• Why do you think it was a good invention?
• How did it change people’s lives?