18. We’re doing ______ (we) homework at home.

17. There are three _______ (knife) on the table.

16. Li Ning can speak________(English).

15. Tom is at the door of the classroom. But it is l_______. He can’t open it.

C)用括号内所给单词的适当形式填空。

14. He likes t______ by train, because it’s cheap and safe.

13. -May I borrow your dictionary?

　 -Of c______. Here you are.

12. In the classroom there are many pictures on the t ______desk.

11. The bottle is e______. I want a full one.

9. they(宾格)_____________　　　 10. boys(所有格形式)____________

B)根据句意及首字母提示，补全单词

7. friend (形容词) ______________　 8. question(同义词)___________