1．我经常在晚上打扫房间。

2．看，他们正在打篮球。

3．他的叔叔住在北京。

4．你能尽快给我写信吗?

5．你为什么要去看熊猫呢?

1、1. I often clean the room in the evening.

2. Look! They are playing basketball.

3. His uncle lives in Beijing

4. Can you write to me soon?

5. Why do you want to see the pandas?