题目内容
7.-Must I clean the classroom now?-No,you ( )
| A. | mustn't | B. | can't | C. | needn't |
分析 -我必须现在打扫教室吗?-不,你不必.
解答 mustn't禁止;can't不能;needn't不必;情态动词must引导的一般疑问句,否定回答用needn't;故选:C.
点评 此题考查情态动词的否定用法.
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