Choose the correct answer for each blank.
1. She looks pretty sick. I think she ________ go
to a doctor.
A. can
B. should
2. You've been driving all day. You ________ be
exhausted!
A. must
B. should
3. You ________ smoke so much. It's bad for your
health.
A. can't
B. shouldn't
4. Hey I'm lost. ________ you help me?
A. Should
B. Can
5. You have such a beautiful voice. You ________
sing for us!
A. should
B. can
6. I know he speaks five languages, but ________ he
speak Arabic?
A. should
B. can
7. That looks very expensive. It ________ have cost
a fortune!
A. must
B. should
8. I ________ believe that you failed your test!
A. can't
B. shouldn't
9. I'm on my way. I ________ be there in about 10
minutes.
A. can
B. should
10. I ________ afford that.
A. shouldn't
B. can't
11 - They ____ be on holiday, but I'm not sure.
A. can
B. may
12 - You ____ be right, but I'd still like to
check.
A. can
B. could
13 - ____ you turn it down a bit please?
A. Can
B. May
14 - It's OK- you ____ go when you've finished.
A. may
B. might
15 - Ask any questions now as you ____ not talk
during the test.
A. may
B. could
16 - You ____ smoke in the cinema.
A. can't
B. might not
17 - From the way he speaks, he ____ be from
London.
A. can
B. could
18 - It's impossible- they _____ have finished it
already!
A. can't
B. mustn't
19 - The weather ____ be better tomorrow.
A. can
B. may
20 - ____ you speak Japanese?
A. Can
B. May
USED TO EXERCISE
Make an affirmative sentence, negative sentence or
question using ‘used to + infinitive':
1) I / live in a flat when I was a child. .
2) We / go to the beach every summer? .
3) She / love eating chocolate, but now she hates
it .
4) He / not / smoke .
5) I / play tennis when I was at school .
6) She / be able to speak French, but she has
forgotten it all .
7) He / play golf every weekend? .
8) They both / have short hair .
9) Julie / study Portuguese .
10) I / not / hate school
