虚拟语气的倒装if it had't rained yesterday 倒装是not的位置是什么a had it not rained b hadn't it rained

问题描述:

虚拟语气的倒装
if it had't rained yesterday 倒装是not的位置是什么
a had it not rained b hadn't it rained

Had it not rain yesterday
not永远放在动词前面就对了.