20. - Have you played baseball before? We need one more player.

- ______. But I believe it will be fun to learn baseball.

A. Sometimes　 　　　 B. Not really　 　　　　　 C. Never mind　 　　 D. That’s cool

19. -Why does the Lake smell terrible?

- Because large quantities of water　　　 .

　 A. have polluted　　　 　　　　B. is being polluted　　

C. have been polluted　 　　　　D. has been polluted

18. That is the only way we can imagine ______ the overuse of water in students’ bedrooms.

A. reducing 　　　　　　　 B. to reduce 　　　　　　　 C. reduced 　　　　　　 D. reduce

17. Children who are not active or 　　　　diet is high in fat will gain weight quickly.

　 A. what　　　　 　　B. which 　　　　　　　　　 C. whose　　　　 D. that

16. I have told you the truth. _______I keep repeating it?

A. Must 　　　　　　　　　 B. Can　 　　　　　　　　　　 C. May　 　　　　　　　　 D. Will

15. The lady walked around the shops, ______an eye out for bargains.

A. keep　　　　　　　　　　　 B. kept　　　　　　　　　　　 C. keeping　　　　　　　 D. to keep

14. Because of the heavy traffic，it was already time for lunch break 　　　　　she got to her office.

A. since　　 　　　　　　　 B. that　　 　　　　　　　　 C. until　　 　　　　　 D. when

13.- I have not finished my dinner yet.　 www.k@s@5@　　　　　　　　　　　　　　 高#考#资#源#网

　 - But our friends　　 　for us.

　 A. will wait　　　 　　 B. wait　　　 　　　　　 C. are waiting 　　　　 D. have waited　　 　　　

12. If you leave the club, you will not be　　　 back in.　

A. received　　　　 　 B. admitted　　　 　　 C. turned　　　 　　　 D. moved