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12.-May I smoke here?
-No,you      .This is a no-smoking room.(  )
A.needn'tB.mustn'tC.needD.wouldn't

分析 --我可以在这里吸烟吗?
--不,你不准.这是无烟区.

解答 答案:B needn't,没有必要;mustn't,禁止,不;need,需要;wouldn't,将不,不会;根据No,在这里是一个否定回答,以May开头的问句,它的否定回答应该用mustn't.故选B.

点评 情态动词是中考的热点,情态动词除了表推测外,还可以表达另外的意思,如must理解为必须,由这个词所开头的问句,肯定回答用Yes,you must.否定回答用No,you needn't或者是No,you don't have to.注意不用mustn't,因为mustn't表示例行禁止的含义.

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