The document contains the answers to various exercises and quicktests covering computers and technology, grammar, vocabulary, and pronunciation. Exercise 3 includes short answers about using computers and the internet. Exercise 6 multiple choice questions about the birth of computers. The quicktests section lists multiple choice answers to questions testing grammar, vocabulary, and pronunciation skills.

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