根据句意和汉语提示，填写恰当的短语完成下列句子。

1. Can we ______(推迟) the meeting till next Monday morning?

2. Would you please ______(分发) the exam papers?

3. He must feel sad now. Let's ______(使他高兴起来).

4. Can't you ______(想出) a better excuse than that?

5. The room is too dirty. It should be ______(打扫干净).