根据汉语或首字母提示完成句子。

1. Our________ (班长) is very outgoing.

2. Many________(游客) come to visit China every year.

3. I'm________ (累了). I want to have a rest.

4. Last week they t________ the bus back to school.

5. Let's do some o________ activities (活动). They're interesting.