1. 根据句意和所给词首字母提示完成句子所缺单词

1. （1） Do you know when the b closes today? I want to buy two books.

3. （2） It's time to have class. Lucy r into the classroom.

5. （3） R, bathrooms and washrooms are all toilets.

7. （4） The sun r in the east and sets in the west.

9. （5） —Do you know where we can get some food quickly?
   

   —I s Water City Restaurant in Water World. It's a fast food place.