将下列英语句子译成汉语，汉语句子译成英语。
1. They decide to go to Beijing for school.
________________________________________
2. What did you think of your vacation?
________________________________________
3. 昨天天气既潮湿又热。
The weather yesterday _________ humid and _________.
4. 今天你不必打扫教室。
Today you don't _________ _________ clean the classroom.
5. 沿着这条街走，然后就会看到邮局。
_________ _________ this street, and then you can see the post office.