题目内容
10.-Mum,I'm going climbing.Must I clean the room now?-No,you_____________.You can do it this evening.( )
| A. | can't | B. | mustn't | C. | needn't |
分析 --妈妈,我将要去爬山.我现在必须打扫房间吗?
--不,你不必.你可以今天晚上打扫.
解答 答案:C.
根据No和You can do it this evening.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C.
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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