1) When Tom was 16, he was a fast runner. He __________ run 100m in 12 seconds! a) must b) could c) can d) couldn't e) can't f) should 2) The coat you bought is of very good quality. It ________ have been very expensive. a) can b) must c) can't d) should e) could f) couldn't 3) This is a very precious book. You _________ lose it! a) shouldn't b) should c) can d) can't e) needn't f) mustn't 4) It's getting windy outside. You __________ put your coat on. a) can b) could c) needn't d) should e) ought f) must 5) He’s really tired. He __________ take a break. a) can b) could c) needn't d) should e) ought f) must 6) You __________ be at least 18 years old to vote in the election. a) can b) have to c) needn't d) ought e) must 7) If you’re feeling sick, you __________ see a doctor. a) can b) could c) needn't d) should e) ought f) must 8) We __________ leave now, or we’ll be late for the movie. a) can b) have to c) needn't d) should e) ought f) must 9) She __________ apologise if she made a mistake. a) can b) has to  c) needn't d) should e) ought f) must 10) They __________ have taken the wrong turn; we're lost! a) can b) might c) needn't d) should e) ought f) must

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