20. When our personal interests are ________ those of people, we should put people’s interests before our own.

　 A. conflicting　 B. in conflict with　 C. conflict with　 D. in conflict against

19. We should express our love to our loved ones before their ears can still hear and their hearts can still _______and made happier, not after they are gone.

　 A. be thrilled　　 B. excite　　 C. thrill　　 D. be excited

18. No matter how clever a computer becomes, it can never _______ of humans, because it has to with artificial intelligence, which is made by us humans.

　 A. take place　　 B. instead of　　 C. take the place　　 D. substitute

17. Unwilling to give up slavery, the South _______ from the Union and set up a state of their own, resulting in the American Civil War.

　 A. broke away　 B. ran away　　 C. escaped away　 D. cut away

16. In his effort to prevent his company from _______, he worked to his limit, thus ________.

　 A. breaking down; breaking down his health　　 B. closing down; broke down his health

　 C. closing down; his health broke down　　　　 D. breaking down; his health breaking down

15. ---She is a credit to her family, for she has a small fortune ______ her credit.

　 ---A credit to her family? Her father has to buy his daily necessities ______.

　 A. on; on credit　 B. in; in credit　 C. to; on credit　 D. under; with credit

14. His essay on political structural reform _______ nationwide attention and there were many pros and cons from different fields.

　 A. called　　 B. attracted　　 C. brought in　　 D. set out

13. President Obama and his team of administration promised to try every means possible to ______ 3,500,000 jobs and _______ the goal of recovering its economy as soon as possible.

　 A. create; accomplish　　 B. invent; achieve　　 C. discover; win　　 D. attract; finish　

12. It is _____ to make another effort and try to finish the work ahead of the time _____ for it to be finished.

　 A. worth; fixed　　 B. worthwhile; made　 C. worthy; fitted　　 D. worthwhile; set

11. My little brother _____ great delight _____studying ancient architecture .

A. picks; in　 B. devotes; to　 C. takes; in　 D. enjoys; by