用所给词的适当形式填空。   

1. I             (go) to zoo with my friend last Sunday.

2. I like            (swim) in the river in summer.

3. There            (be)a dog and two cats in the room.

4. Which            (season) do you like best?

5. Who is the            (tall) boy in your class?

6. I'm so            (excite). The book is            (excite).

7. Miss Li             (teach) us Chinese this year.

8. It is a             (wind) day today.

9. I often have            (a) apple and            (a) hamburger for mybreakfast.

10. The toy stone is on the            (three) floor.

作图题：请画出备投后备过流动作原理图。