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Key to Exercises

29.3 UNIT 31 6 I don't thi nk you shou ld go to

3 日 e might get up early. work.

31.1

4 He isn't/He's not working 7 I thi nk he shou ld go to the

2 must meet 5 must go

tomorrow. doctor.

3 must wash 6 must win

5 日 e might be at home 8 I don't think we should stay

4 n1ust learn 7 must be

tomorrow morning. there.

6 日 e might watch TV. 31.2 32.5

7 He's going out in the 2 I must 5 I had to Example answers:

afternoon. 3 I had to 6 I had to 2 I think everybody should

8 日 e might go shopping. 4 I must 7 I must have enough food.

29.4 31.3 3 I thi nk people should drive

1—3 Example answers 2 do n't need to ru sh more carefu lly.

I might buy some new clothes. 3 mustn't lose 4 I don't think the police

I m ight go out with so me 4 do n't need to wait sho u l d carry gu ns.

friends. 5 mustn't forget 5 I think I should take more

•
I m ight have an egg for 6 do n't need to ph on e exercise.

breakfast. 31.4

UNIT 33
2 C

UNIT 30

3 A 33.1

30.1 31.5 45 2 have to do

2 Can you ski? 3 do n't need to BD 3 has to read

3 Can you play chess? 4 had to 4 have to speak

l
4 Can you run ten ki ometres? 5 must 5 has to travel

5 Can you drive (a car)? 6 mustn't 6 havetoh it

6 Can you ride (a horse)? 7 must 33.2

7 I can/can't swim. 8 had to 2 have to go

8 I can/can't ski. 9 do n't need to 3 had to buy

9 I can/can't play chess. 10 mustn't 4 have to c han ge

10 I can /can't run ten ki Iometres. 5 had to an swer

11 I can /can't d rive (a car). UNIT 32

33.3
12 I can /can't ri de (a h orse).

32.1 2 did he have to wait

30.2 2 Youshouldgo 3 does she have to go

2 can see 3 You should eat 4 did you have to pay

3 can't hear 4 you should visit 5 do you have to do

4 can't find 5 you should wear

33.4
5 can speak 6 You shou ld take

2 doesn't have to wai t.

30.3 32.2 3 didn't have to get up early.

2 cou ldn't eat 2 日 e shouldn't eat so much. 4 doesn't have to work (so) hard.

3 can't decide 3 She shou ldn't work so hard. 5 do n't have to leave now.

4 cou ldn't fi nd 4 日 e shou ldn't drive so fast.

33.5
5 can't go

32.3 3 have to pay

6 cou ldn't go
2 Do yo u th i n k I s ho u ld l ear n 4 had to borrow

30.4 (to drive)? 5 must stop or have to stop

2 Can/Could you pass the salt 3 Do you th in k I shou ld get (both are correct)

(please)? another job? 6 has to meet

3 Can/Could I have these 4 Do you th in k I shou ld invite 7 must tell or have to tel I

postcards (please)? Gary (to th e party)? (both are correct)

4 Can/Could you turn off the
32.4 33.6

radio (please)?
3 I t h i n k yo u s h o u l d s e ll i t. Example answers:

5 Can/Could I borrow your
4 I thi nk she should have a 2 I have to go to work every day.

newspaper (please)?
holiday. 3 I had to go to the dentist

6 Can/Could I use your pen
5 I don't thi nk they should get yesterday.

(please)?
married. 4 I have to go shopping

tomorrow.

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