用所给词的适当形式填空。

1. Look at the       . How big they are! (library)

2. Look! The boy is        to the classroom. (run)

3. There aren't        exercises on the paper. (some)

4. Children in        often play ping pong. (Chinese)

5.        homework can you do today? (how many)

6. There are some small        near Tianjin. (city)

7. Do you know       ? (where is he from)

8. Oh, your shoes are like       . (Tom)

9. Can you        a horse like that man? (ride)

10. I want to buy two bags of        for the children. (soap)

滤池滤速保持不变称等速过滤，属等速过滤的是（）

A.普通快滤池

B.V形滤池

C.虹吸滤池

D.移动罩滤池