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　　对于英语语法中情态动词的用法，是很多人的弱项，例如表示否定的，mustn\'t，may not，needn\'t，的用法有什么区别，你知道吗？今天通过习题训练来学习并理解情态用词的用法。

　　习题：

　　1. -Must I stay at home, Mum?

　　--No, you ______.

　　A. needn\'t B. mustn\'t C. don\'t D. may not

　　2. -Who is the man over there? Is it Mr Li?

　　--No, it ______ be him. Mr Li has gone to America.

　　A. mustn\'t B. may not C. can\'t D. needn\'t

　　3. To make our city more beautiful, rubbish ______ into the river.

　　A. needn\'t be thrown B. mustn\'t be thrown

　　C. can\'t throw D. mustn’t throw

　　4. -Must we hand in the papers now?

　　--No, you ______.

　　A. can\'t B. may not C. mustn\'t D. needn\'t

　　5. You_____ to the meeting this afternoon if you have something important to do.

　　A. needn’t to come B. don’t need come

　　C. don’t need coming D. needn’t come

　　6. You’d better _____late again.

　　A. don‘t B. not be C. not being D. won’t be

　　7. You _______ smoke in the hospital.

　　A. needn’t B. oughtn’t to C. ought to not D. may not

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