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.