has to 的反义疑问句怎么样做?

来源：学生作业帮编辑：搜搜考试网作业帮分类：英语作业时间：2024/06/05 07:44:21

has to 的反义疑问句怎么样做?
Emma has to stay at home to look after her little sister ,doesn't she?的原因是什么?
为什么不用hasn't she？has to 不是情态动词吗？

这里用的是have to 的短语,只充当一般动词的作用,助动词为do,does,和普通的一般疑问句没有任何差别,提问当然还是用do,does引导.
只有当用have,has做助动词的时候,疑问句才用它们引导,如：she has seen it,hasn't she?这里的助动词就是has（而上面的那个has to 只相当于这里的seen）

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