题目内容
5.-Mum, I go to the cinema?-No,you .You finish your homework first.( )
| A. | could;couldn't;could | B. | may:can't:must | ||
| C. | can;can't;may | D. | may;mustn't;might |
分析 --妈妈,我可以去看电影吗?
--不,你不可以.你必须先完成你的作业.
解答 答案:B.考查情态动词.句意"--妈妈,我可以去看电影吗?--不,你不可以.你必须先完成你的作业.".第一个空,表示委婉的请求许可,用may.第二个空否定回答用can't,表示不可以.第三个空,语气比较坚决,用must,表示必须先完成作业.答案是B.
点评 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语.要注意情态动词的不同用法.结合语境选择正确答案.
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