11.  a lot of student afraid.

12.  But on earth ,the a lot of question didn't happen.

13.  a lot of functions that I ever knowed .

14.  Her lectures were clear and interesting And she gave us a lot of exercises in class.

15.  A few weeks ago in my visit to her, we still talked quite a lot about my first days at school.

16.  Dr Brown told the professor that they had talkded a lot about his invention.

17.  Home town has changed a lot since my last visit three years ago.

18.  Sometimes we have lots of rain.

19.  I have a lot of storys want to tell every bady , but I know it is onlya dream.

20.  She did lots of things for me, and so did I. we did many things together, such as swimming, study, even succeed or fall and so on.