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Choose the correct answer.
(??)Our teacher _____________ speak three languages.
(?)can
(?)must
(?)may

(??)They _____________ take every Friday off last year.
(?)were allowed to
(?)might
(?)could

(??)Your coat is quite new. You _____________ buy another one.
(?)mustn ’t
(?)needn ’t
(?)can’t

(??)I’d like _____________ play chess.
(?)to have to
(?)to be able to
(?)to can

(??)Students _____________ interrupt their teachers.
(?)cannot
(?)needn’t
(?)mustn’t

(??)He said he _____________ stay any longer.
(?)might not
(?)couldn ’t
(?)needn’t

(??)I think I’ll _____________ go and explain it to them.
(?)must
(?)have to
(?)can

(??)Are you sure you’ll _____________ get to the bottom of it?
(?)can
(?)be able to
(?)may

(??)The woman got up and Grayson _____________ see her face clearly before she switched off the light.
(?)might
(?)was able to
(?)could

(??)We _____________ not get the medicine and returned home without it.
(?)might
(?)had to
(?)could

(??)_____________ I have your book for a moment?
(?)Might
(?)Must
(?)May

(??)The boy _____________ drive my car if he passes his exam.
(?)may
(?)will be allowed to
(?)can

1. Our teacher can speak three languages.2. They could take every Friday off last year. 3. Your coat is quite new. You needn't buy another one. 4. I'd like to be able to play chess. 5. Students mustn't interrupt their teachers. 6. He said he couldn't stay any longer. 7. I think I'll have to go and explain it to them.8. Are you sure you 'll be able to get to the bottom of it?9. The woman got up and Grayson could see her face clearly before he switched off the light. 10. We could not get the medicine and returned home without it. 11 May I have your book for a moment? 12. The boy will be allowed to drive my car, if he passes his exam.