题目内容
15.-________ I finish the work this morning?-No,you needn't.You can finish it tomorrow.( )
| A. | Must | B. | Can | C. | Need | D. | May |
分析 --我必须今天上午完成这项工作吗?
--不,你不必.你可以明天完成它.
解答 答案:A.must一定,必须;can能,会;need需要;may可以.must的含义是必须一定,其否定形式mustn't表示禁止的含义.以must引导的一般疑问句的否定回答一般借助于needn'和don't have to来构成,根据No,you needn't,可知这是must引导的一般疑问句的否定回答,所以上面的问句应该用must引导.故选A.
点评 本题考查了情态动词的用法.解答本题时注意must的否定形式是常考内容之一,结构比较固定,熟记即可.
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