I didn t know what was happening outside这句话中为什么happen加ing?
I didn t know what was happening outside这句话中为什么happen加ing?
He didn't know what was happening outside,为什么happening是进行时?
he didn't know what was happening outside 为什么用的是was happenin
He didn't know what was happening outside为什么用进行时
在There is always something happening.这句话中happen为什么要加ing
he didn not know what was happening outside
再问一个 I didn·t know what was happening.同义句 I didn·t know what
what is happening outside(用she didn't know 作主句)
I don't know what was the matter outside . 这句话怎么翻译好.
it appeared that he didn't know what was happening=he()()to
一道初二英语单词填空He didn't know what was h__outside.(是不是用happen?)
I didn`t know what was the matter还是I didn`t know whatt he ma