11. The experiment ________ the discovery of a cure for cancer.

　　(A) happened to (B) led up (C) resulted in (D) set up

　　正确答案：C

12. There are 4 words marked( A), (B), (C) and (D ) in each group. Choose the one which underlined part has a different pronunciation from the other three

　　(A) graduate (B) recognize (C) apology (D) finger

　　正确答案：C

13. Nobody but John ________ the secret.

　　(A) know (B) )knows (C) have known (D) is known

　　正确答案：B

14. There are 4 words marked (A), (B), (C) and (D) in each group. Choose the one which underlined part has a different pronunciation from the other three

　　(A) hall (B) fall (C) small (D) shall

　　正确答案：D

15. She got to know the young man very well ________ she had worked for so long.

　　(A) with whom (B) in whom (C) whom (D) to whom

　　正确答案：A

16. There are 4 words marked( A),( B),( C) and( D ) in each group. Choose the one which underlined part has a different pronunciation from the other three.

　　(A) maps (B) bags (C) desks (D) bikes

　　正确答案：B

17. The committee members propose that the plan ________ postponed for a few days.

　　(A) being (B) to be (C) been (D) be

　　正确答案：D

18. There are 4 words marked (A),(B),(C) and( D ) in each group. Choose the one which underlined part has a different pronunciation from the other three.

　　(A) butter (B) mute (C) mule (D) assume

　　正确答案：A

19. There are 4 words marked (A), (B), (C) and (D) in each group. Choose the one which underlined part has a different pronunciation from the other three.

　　(A) enough (B) rough (C) tough (D) though

　　正确答案：D

20. When the old lady is alone in the house, her dog makes her feel ________ and relaxed.

   (A) safe (B) healthy (C) lonely (D) angry

　　正确答案：A