13．Kathy is one of the best 　　　　　(student)in our class．

12．It’s 　　　　　(important)for us to attend the meeting，because it's no use to our study．

11．I cannot find my keys．I think I have 　　　　　(lose)them．

10．It’s a 　　　　(秘密)between you and me，so don’t tell it to anyone else.

C)请你用所给单词的适当形式填空。

9．You must pay special 　　　　(注意)to your handwriting.

8．Would you please tell us some of your 　　　　　(经历)in China?

7．If you keep on trying，you will 　　　　　(成功)one day.

6．I was still 　　　　　(醒着的)when he came to bed．

5．Do you know what c　 　　　　so many trees to fall down last night?

　 B)请你根据句意及所给汉语提示，写出单词的正确形式。

4．Her face turned red when she r　　　　 　her mistake．