it was the postman 为什么用it?
it was the first time 后面为什么要用过去完成时
it was such fun to watch it run loose in the park为什么可以用loose
it is snowing heavily but the postman is still( )the village
Who is knocking at the door?I think ___ is the postman?A、it
Who's that at the door?____ is the postman.A.She B.This C.It
i bought it when i was living in the china,为什么这里要用was living
it was exciting news for all the people 为什么是it was exciting而
What' s the weather like?为什么答It was raining
I afraid it was too late 为什么用was
Now she plays it pretty well和The game was pretty good中为什么一个用
It was a matter of_ would take the position.为什么用who不用Whoever
It was not until yesterday ___me the truth为什么用A.did Janet te