His father served in the army in ________ when he was in ________.

He went to see the man who was in hospital yesterday. — ____________.

In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs.

Why not_____ us ?—-Because I have a lot of work______.

Last weekend, an English short play was _____ in the second hall.