21. “Do you mind if I sit here?” “_____. It’s for my friend.”

A. Not at all　　　 B. Never mind　　 C. Better not

20.What happened _____ the poor girl?

A. in　　　　　　 B. at　　　　　　 C. to

19.Hey! Don’t ____ . You must wait for your turn.

A. cut in line　　　 B. cut in a line　　 C. go in the line

18.We made _____ with them when we stayed in London.

A. a friend　　　　 B. friends　　　 C. the friend

17.Yang Lei’s parents encouraged her ____ in Gansu Province.　

A. teaching　　　 B. teach　　　　 C. to teach

16.Our English teacher, Miss Gao, was ill. So Mr. Li gave us a lesson ________ her.

A. instead　　　 B. instead of　　　 C. except.

15.You are tired. ______ a rest?

A. Why stop to have　　 B. Why not stop to have

C. Why not stop having

14.We are going to the gas station. Put _____ your cigarette.

A. up　　　　　 B. on　　 　　　C. out

13. “_____ do you surf the Internet?”　 “Once a week.”

A. How long　 B. How soon　　 C. How often

12. “Would you mind answering the telephone, Mary?”　 “ OK, _____ it now.”

A. I’ll do　　　 B. I’m going to do　 C. I’m doing