Directions: There are 20 incomplete sentences in this section. For each sentence there are 4 choices

marked A, B, C and D. Choose the one that best completes the sentence. Mark your

answer on the ANSWER SHEET with a single line through the center.

11.The doctor was ____ about what to do with the case: he just couldn’t find the cause of the illness.

cause of the illness. A.puzzled B. amused C.surprised D. curious

12.A special committee was set up to ______ the matter and report to the board of directors.

A.look for B. look into C. look on D. look through

13. For a lack of space， I had to__a lot of excellent materials, which I intend to include in another book.

A.1eave out B. knock out C.1ay out D. hold out

1 4.To what extent will future scientific discoveries make possible the ______ of the human life span?

A.progress B. extension C. growth D. promotion

15.It was ______ the worst food I have ever had.

A.mainly B. relatively C. recently D. absolutely

16.I'm sorry to ______ you while you’re working but I must ask you a question.

A.interfere B. bother C.catch D.take

17. Few are so silly as to dash back into the house on fire to fetch the money ______ their lives.

A. at the rate of B. at the risk of B. in the interest of D. in the case of

18.Many species have ______before man can document them properly.

A.finished B. crushed C. vanished D. furnished

19. ______deserts are dry regions, visitors might come upon an area with trees and water.

A.Just because B. Only when C.As if D.Even though

20.When Columbus landed in the New World, he believed he had found a new ______ to Asia.

A.trail B. path C.track D. route

21.There is one thing I ______ like to know---what is it about Tim that you find so appealing?

A.will B. could C.would D. should

22.He was found to be a thief, ______disappointed his wife.

A.who B. that C. which D. whom

23.______, the great Mississippi rolls its mile-wide tide along, shining in the sun.

A.Unnoticing B. Be unnoticing C. Having unnoticed D. Unnoticed

24. By comparing myself with others, I can find out ______ I am weak.

A. where B. what C. which D. when

25. I told Jim how to get here but perhaps I ______ him the map.

A. had to give B. must have given C. ought to give D. should have given

26.Ted ______ to dip into his pocket for his son’s college tuition fees.

A. forced B. was forcing C. was forced D. had been forced

27.Believe me, my memory is ______, if not better than it was in my teenage years. A. as good B. so good C. so good as D. as good as

28.A lot of efforts have to be made in order to make this show ______.

A.to succeed B. succeeded C. a success D. successfully

29.Politics is ______ important a matter to be left to experts.

A.too B. very C. much D. so

30.The investigators have tried to identify the cause of the air crash one way or ______, but in vain.

A.other B.another C.the other D.else