1.当人很多的时候,你应该排队等候。
you should ( )( ) ( ) when there are too many people.
2.这部影片太无聊了,看到一半我就睡着了。
the movie was boring,i ( ) ( ) half way through it.
3.在全运会之前,我们应该尽力取得进步。
we should try to ( ) ( )before the national games.
4.你曾经收到的最好的礼物是什么。
what's the best gift you ( ) ( )( )?