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--- Must I finish my homework now?
-- No, you ________. You can go home now.
A.needn’tB.mustn’tC.shouldn’tD.can’t
A
must的含义是必须一定,其否定形式mustn’t表示禁止的含义。故must的否定回答一般借助于needn’和don’t have to来构成。句意:我必须现在就完成我的作业吗?——不,你不必。现在你可以回家。结合语境及所给选项,可知选A。
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