根据句意及图片提示或首字母提示完成单词。

1. Let's play basketball in the _____  

(  ).

2. We can borrow(借) some books from the _____

(   ).

3. There is a science_____  (     )in Mary's school.

4. I have lunch in the d_____  hall in our school.

5. Your answer(答案) isn't r_____ .  Twenty and ten is thirty.