根据句意及首字母提示在横线处填上恰当的单词，使句子意思完整，语法正确。

1. He went to bed very late yesterday, so he o           this morning.

2. I'm afraid I have to r            , or I'll be late for class again.

3. Don't forget to 1             the door when you leave.

4. His watch b                down.  He wanted to buy a new one.

5. On the Spring Festival, we visit our r            and friends.