Unit 4

Answer key

&

1

2 have been reading
3 has seen
4 have you known
5 haven't had
6 Have you decided
7 've been trying
8 have you been doing?
9 hasn't visited

&

2

[suggested answers]
2 She has been watching a sad ®lm.
3 They have been eating chocolate.
4 He has been swimming.
5 He has been ®ghting.
6 She has been working on the car.
7 He has been cutting onions.

&

3

2 c
3 a
4 c
5 b
6 c
7 a
8 b

&

4

2 should
3 ought
4 better
5 should

# Cambridge University Press 2005 Level 3 Unit 4

GRAMMAR

PRACTICE

LEVEL

3

UNIT

4

Level 3