key for homework

1. ExtraExercises ComputersandTechnology and Quicktest 3 key
Exercise 3.
1. yes
2. click on it/roll on
3. you can’t use it
4. world wide web
5. electronic
a) emails
b) file
c) on the Internet
d) disc
e) back
f) reboot
g) online
h) memory
i) laptop
Exercise 6:Birthof computers
1. c
2. a
3. c
4. a
5. a
6. a
7. a
8. b
9. d
10.c
Quicktest
Grammar
1. b
2. a
3. a

2. 4. c
5. a
6. b
7. b
8. a
9. c
10.b
11.c
12.b
13.c
14.a
15.c
16.a
17.a
18.a
19.b
20.a
Vocabulary
1. b
2. a
3. a
4. c
5. c
6. b
7. c
8. a
9. a
10.b
11.c
12.c
13.b
14.b
15.c
16.a

3. 17.c
18.a
19.b
20.a
Pronunciation
1. c
2. b
3. a
4. b
5. a
6. c
7. b
8. c
9. a
10.b