1.Could you tell me where thepost office _________ (be)?
问题描述：
1.Could you tell me where thepost office _________ (be)?
2.He said that he _________ (finish) his workalready.
3.He was glad that so many people_________ (help) him.
答
1,is tell后面是个宾语从句,主语是the post office,单数,又根据句意,时态是一般现在时,故用is2,had finished宾语从句是主句用一般过去式,从句用过去完成时,尤其是句子用already的情况下.3,were helping .根据句意,人...