1) ___________ you swim when you were 10? a) Can b) Must c) Could 2) He's amazing, he _____________ speak five languages, including Chinese. a) can't b) has to c) can 3) Jill _______________ play the piano. She has never studied it. a) could b) must c) can't 4) The museum is free. You ______________ pay to get in. a) must b) don't have to c) could 5) You _____________ smoke inside the school. a) can b) mustn't c) don't have to 6) She ____________ get up early today, because it's Sunday. a) musn't b) don't have to c) doesn't have to 7) We _____________ be late for the exam. a) mustn't b) can c) had to 8) Drivers ______________ stop when the traffic lights are red. a) could b) must c) shall 9) ______________ you help me, please? - Yes, of course. a) Could b) Shall c) Must 10) I'm afraid you ____________ sit there. That table is reserved. a) can't b) can c) could 11) You _____________ come with us if you don't want to. a) can b) couldn't c) don't have to 12) It's dangerous to go into deep water if you __________ swim. a) can b) can't c) could 13) You ______________ write 300 sentences ! 30 will be enough. a) can't b) don't have to c) must 14) Bill ____________ work hard because he's poor. a) must b) can c) have to 15) I ____________ go out yesterday because I was so tired. a) could b) can't c) couldn't 16) To get a driving license you _________ be over 18. a) can b) must c) don't have to 17) This is a secret between you and me, so we ___________ tell anyone else. a) don't have to b) must c) mustn't 18) Daniel _________ speak French when he was in France, but he can't now. a) could b) couldn't c) can

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