Must she stay here No she does not have to给我讲一下这个回答吧

题目

Must she stay here No she does not have to给我讲一下这个回答吧
就是为什么要用does not have to

答案

请您记住 must.提问的,都是用 肯定回答用 yes,主语 must.
否定回答用 no ,主语 助动词 not have to,否定回答的时候还可以用,no,主语 needn't