20.－Do you know when the Chinese custom 　　　　from?

　 －It's hard to say. But its characteristics 　　　　the Tang Dynasty.

　　 A. began; prove　 　B. started; show　　　 C. is; appear　　 　　D. dates; suggest

19. His father won't 　　　　her to use his new car.

　 　　A. have　　　　　　 B. let　　　　　　　 C. agree　　　　 　　D. allow

18. －Hi, Tom, you look tired.

　 　－I'm tired. I　　　　 the living room all day.

　　 　A. painted　　　　 　B. had painted　　　　 C. have been painting 　D. paint

17. The thief was brought in, with his hands 　　　　behind his back.

　 　　A. being tied　　　　 B. having tied　　　　 C. to be tied　　 　　　D. tied

16. Cleaning women in big cities usually get 　　　　by the hour.

　 　A. pay　　　　　　　 B. paying　　　　　　 C. paid　　　　　　　 D. to pay

15. Scientists often have to　　　　 government support in order to do research.

　 　A. rely on　　　 　　　B. hold on　　　　　　 C. keep on　　 　　　D. go on

14.－Can I help you?

－Yes. I bought this TV here yesterday, but now it　　　 work.

　　 　A. didn' t　　　　　　 B. won' t　　　　　　 C. can' t　　　　　　 D. doesn' t

13. It is 　　　　　that we shall meet with some opposition.

　 　A. likely　　　　　　 B. like　　　　　　　 C. maybe　　　　　　 D. possibly

12. 　　　　problems you have, you can always come to us for help.

　　 　A. Whatever　　　　 　B. However　　　　　 C. Whenever　　　　　 D. Wherever

11. The scientist wants to develop new technology that will make 　　　　possible to grow food in the mountain village which is short of water.

　　 　A. this　　　　　　 B. that　　　　　　 C. it　　　　　　　 D. its