题目内容
15.-Must I finish cleaning the room now,mom?-No,you ________.You can do it tomorrow.( )
| A. | needn't | B. | mustn't | C. | shouldn't | D. | can't |
分析 --妈妈,我现在必须打扫房间吗?
--不,你不必.你可以明天打扫.
解答 答案:A.
根据No和You can do it tomorrow.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.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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