must的用法什么时候用mustn~t回答与needn't couldn't wouldn't 的区别

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/28 21:57:16

must的用法
什么时候用mustn~t回答
与needn't couldn't wouldn't 的区别

以may 开头的一般疑问句的否定回答用mustn't 或can't
如
May I go home now
No,you mustn't ./ can't.
另外,以must 开头的一般疑问句的否定回答用 needn't / don't have to
Must he fininsh it at once
No,he needn't .
/
No,he doesn't have to.
再问：区别说一下
再答： couldn't 是以 could 开头的一般疑问句的否定回答。wouldn't 是 would

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