21. A. which　　　　　　　　　　　　 B. where　　　　　　　 C. there　　　　　　　　　　　　 D. here

19. The photo was taken ______ stood the famous Bird’s Nest in Beijing during the Olympics.

A. which　　　　　　　　　　　　 B. in which　　　　　　 C. where　　　　　　　　 D. there

18. Whenever asked to help me with my lessons, he always refuses, ______ he is too busy.

A. to say　　　　　　　　　　　　　 B. saying　　　　　　　　 C. says　　　　　　　　　　 D. having said

17. To our surprise, we got ______ people to attend the meeting as we expected.

A. as twice　　　　　　　　　　　 B. twice many　　　　 C. twice many as　　　　　　 D. twice as many

16. I had just stepped out of the bathroom ______ I heard the steps.

A. while　　　　　　　　　　　　　 B. when　　　　　　　　　 C. since　　　　　　　　　 D. after

15. ---- ______ he dropped out of school?

----His family had run into financial difficulties.

A. Why was it that　　　　　　　　　　　　　　　　　　　　　 B. Why was that

C. Why was that it　　　　　　　　　　　　　　　　　　　　　 C. Why was it

14. Today impressionist paintings are accepted as the beginning of ______ we call “modern art”.

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

13. Many women ______ a good salary, but they chose to stay at home for the family.

A. must make　　　　　　　　　 B. must have made　　

C. should make　　　　　　　　 D. could have made

12. There is no decision yet ______ when the work might start.

A. due to　　　　　　　　　　　　 B. as to　　　　　　　　　　 C. in addition to　　　　　　 D. owing to