题目内容：

1. They’ll return ___________(马上).

2.Could you please ___________(打扫干净) the room?

3.Would you like to ___________(与……聊天) others when you travel by train?

4.I’m sorry I couldn’t ___________(过会与……通话) you sooner.

5.You are supposed to _________ (关掉) your mobile phones when having meetings.