they like ice cream /Do they like ice cream?/What do they like?/They don’t like ice cream.
they like ice cream /Do they like ice cream?/What do they like?/They don’t like ice cream.
the must go home now./ Must they go home now?/When must they go home?/They mustn’t go home now.
这两段对话 为什么第一个用do 第二个不用呢?
the must go home now./ Must they go home now?/When must they go home?/They mustn’t go home now.
这两段对话 为什么第一个用do 第二个不用呢?
英语人气：644 ℃时间：2019-08-21 12:58:58
优质解答
must是情态动词 所以在变形时可以直接把它当成do一样使用情态动词可以在变形时直接当do使用吗？哪些属于情态动词比如说have to, may, might, should都是情态动词，一般情况下都可以和do一样使用的，有帮助就采纳一下吧，谢谢
我来回答
类似推荐