1) Don't tell anyone what I said. You _____ keep a secret. a) must b) mustn't c) needn't 2) You _____ tell anyone else. It's our little secret. a) must b) mustn't c) needn't 3) The shirt is not dirty. You _____ wash it. a) must b) mustn't c) needn't 4) We've got plenty of time. We _____ hurry. a) must b) mustn't c) needn't 5) I _____ get up early tomorrow. the train leaves at 6. a) must b) mustn't c) needn't 6) If you see this sign, What should you do? a) needn't go straight b) mustn't go straight c) must go straight 7) What is the sign mean ? a) must smoke b) mustn't smoke c) needn't smoke 8) I _____ take the umbrella. It won't rain. a) must b) mustn't c) needn't 9) You _____ wash your hands before lunch. a) must b) mustn't c) meedn't 10) You _____ do it now, you can finish it later. a) must b) mustn't c) needn't

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