题目内容
13.-Must I hand in my exercise book at once?-No,you ____.( )
| A. | needn't | B. | may not | C. | mustn't | D. | can't |
分析 --我必须马上交练习本吗?
--不,你不必.
解答 答案:A.
根据No,可知下面为否定回答,must的含义是必须一定,其否定形式mustn't表示禁止的含义.在这里不是禁止的意思.must的否定回答一般可借助于needn'和don't have to来构成,表不必.故选A.
点评 本题考查了情态动词的用法.注意must的用法以及它的肯否定形式.
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