1.Why didn't you watch the show yesterday?
1个回答

1.Why didn't you watch the show yesterday?

Because i ____it before.

A.had watched 因为是在Yesterday前,已经看过.表示过去的过去,用过去完成时.

2.Mary hasn't phone us yet.what____to her?

B has happened 到现在为止,MARY没有给我们打电话,到现在为止她发生了什么事吗

3.There is a crossing.We don't know_____

B which street to turn to 这是个十字路口,不知道选哪一条路,在一定范围内选