英语反义疑问句 问题 老师进啊

来源：百度知道 编辑：UC知道 时间：2024/06/17 11:57:15
就一个题 It must have rained.改为反义疑问句？郁闷啊 老师们【最好附加点 讲解】
谢谢老师 由于只能采纳一个，所以.....就采纳最快的吧.....

It must have rained, didn't it?
这里主句must have done表示对于过去的推测
所以用一般过去式提问

It must have rained, didn't it?
这里的must have done 结构表示对过去事情的肯定推测，所以反义疑问部分用一般过去时的否定形式didn't。

haven't it
must表示肯定的猜测 如用mustn't表示不准
例 He must be at home,isn't he?
You must have finished your homework,haven't you?
但如果有表过去的时间状语，如yesterday last week 用过去式

It must have rained, didn't it?