20. Only in this way _______ to make improvement in the operating system.

A. you can hope　 B. you did hope　　 C. can you hope　　 D. did you hope

19. - Excuse me. Did you notice whether the No 18 bus had gone by?

- Not _______ I began to stand here.

A. as　　 B. since　　 C. when　　 D. while

18. Zhang Yimou's 360 million yuan film "Curse of the Golden Flower" proved a hit on its opening weekend, _______ nine million yuan in Shanghai's cinemas alone.

A. having made　　 B. making　　　 C. to have been made　　 D. being made

17. - Is your grandpa still with you?

-No. he still prefers to. live in the small mountain village _______ all its disadvantages

A. or　　 B. except　　　 C. with　　　　 D. to

16. He took pity on the people in the flooded-areas and _______　 his clothes and quilts to them.

A. gave away　　　 B. gave off　　　　 C. sent out　　　　 D. threw away

15. Do you know _______ art in the 18th century played _______more important part in people's lives than it does today?

A. an; the　　　　 B.不填; a　　　　　　 C. the; a　　　　 D. the; the

14. As is natural, a man as old as he _______be very forgetful.

A. can　　　 B. should　　　 C. would　　　　 D. must

13. We are a little worried because we _______ground as a leader in the field of IT with the others speeding up development.

A. have lost　　　　 B. lost　　　 C. are losing　　　 D .were losing

12. The problem came up at the meeting _______we had not got enough money to do the research.

A. whether　　　 B. if　　　　 C. that　　　 D. what