what was happened 为什么不能用what was happen
what happened/what was happened/what is happened/what happen
He asked me what happened at 8:00 last night 为什么不用was happen
what happens what was happened what happens what is happenin
What has happened和What was happened区别
what happened 为什么不可以用 what did happen
为什么是What happened?而不是 What did happen?
Mary was heard ----just now .what happen?
the girl was able to explain what had happened.不是被动语态为什么用was
what happening?如果错了,解释以下what happened?为什么不能改为what did happen
what has happen 和what was happen 和what happen有什么区别,它们后面都能加to
选择题what ______to him just now ? A.happen B.was happen c.was
I didn t know what was happening outside这句话中为什么happen加ing?