21. Eating too much fat can ______ heart disease and cause high blood pressure.

　 A. respond to　　　 B. contribute to　　 C. attend to　　　 D. devote to

20. The village I visited last week lies ______ the two roads meet.

　 A. where　　　　 B. when　　　　　 C. in which　　　 D. after

19. What would you do if you got , ______ a million dollars?　

A. tell　　　　　 B. talk　　　　　　 C. speak　　　　 D. say

18. This is your last chance, You may as well _______ full advantage of it.

　 A. make　　　　　 B. get　　　　　　 C. take　　　　 D. have

17. These animals are all used to their environment; ______ they have learned how to live successfully in their habitat. 　A. for example　 B. what’s more　 C. that is　 D. or rather

16. When I opened the door, I found my father sitting in his chair, completely ______ a magazine.

　 A. absorbing in　　 B. absorbed in　　　 C. absorbing to　　 D. absorbed to

15. For more that 20 years, we have been supporting educational programs that ______ from kindergartens to colleges.

　 A. spread　　　　 B. move　　　　　 C. shift　　　　　 D. range

14. Nuclear science should be developed to ______ the people rather than harm them.

　 A. benefit　　　　 B. contribute　　　 C. protect　　　　　 D. affect

13. It was ______ the radio that the young man spent a whole morning in his room.

　 A. to repair　　　 B. repaired　　　 C. repairing　　　　 D. to be repaired

12. If we work with a strong will, we can overcome any difficulty, ______ great it is.

　 A. what　　　　　 B. how　　　　　 C. however　　　　 D. whatever