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-May I watch TV for a while?

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/03 07:50:40
-May I watch TV for a while?
-No,you ______.You have to do homework.
a.shouldn't b.needn't c.mustn't d.won't
(为什么不用shouldn't)?而用mustn't
由may 引导的表示请求的疑问句,
否定回答只有两个 一个 mustn't 另一个 can't 记住就可以了.
这里没有can't ,所以就mustn't了.没有什么技术含量,就是记住就行了.