﹣﹣﹣Mustwecleantheclassroomatonce?﹣﹣﹣No,you
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问题详情:
﹣﹣﹣Must we clean the classroom at once?
﹣﹣﹣No, you ________. You may clean it after school.( )
A.mustn't B.needn't C.can't
【回答】
B.
【分析】﹣﹣我们必须马上打扫教室吗?
﹣﹣不,你们不必.你们可以放学后打扫它.
【解答】mustn't禁止;needn't不必;can't不能.根据问句"Must we clean the classroom at once?"可知此处是以must开头的一般疑问句,作否定回答时用:No, you needn't./No, you don't have to. 结合选项可知用needn't符合题意.
【点评】本题考查情态动词,must提问,否定回答为needn't是做题的关键知识点.
知识点:情态动词
题型:选择题
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