9. If you want to keep healthy you should vary the foods you eat.

　　A. reject

　　B. accept

　　C. change

　　D. choose

　　10. She found me very dull.

　　A. dirty

　　B. sleepy

　　C. lazy

　　D. boring

　　11. Only a small minority of the mentally ill are liable to harm themselves or others.

　　A. easy

　　B. possible

　　C. likely

　　D. difficult

　　12. They have the capability to destroy the enemy in a few days.

　　A. possibility

　　B. necessity

　　C. ability

　　D. probability

　　13. Jack eventually overtook the last truck.

　　A. hit

　　B. passed

　　C. reached

　　D. led

　　14. Sometimes it is advisable to book hotels in advance.

　　A. possible

　　B. profitable

　　C. easy

　　D. wise

　　15. Obviously these people can be relied on in a crisis.

　　A. lived on

　　B. depended on

　　C. believed in

　　D. joined in

　　參考答案：1.D 2.A 3.C 4.C 5.D 6.A 7.B 8.C 9.C 10.D11. C 12. C 13. B 14. D 15. B