题目内容
18.-Must I finish my homework now?-No,you _____.( )
A. | mustn't | B. | needn't | C. | can't |
分析 句意:--我必须现在完成我的作业吗?
--不,你不必.
解答 答案:B.A.mustn't 禁止;B.needn't 不必;C.can't不可能.根据Must I finish my homework now,可知这里是must引导的一般疑问句,以must表示必须时,引导一般疑问句时,肯定回答为Yes,sb must.否定回答为:No,sb.needn't./don't have to.故选B.
点评 本题考查了情态动词的用法.解答时注意must引导的一般疑问句的肯否定回答.
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