2. He came to know that the knowledge from books can be useful only ?______? it is linked with practice.?
A. as
B. when
C. while
D. for?

3. ?____?, it is quite easy to drill a hole in it with laser.?
A. Hard although a diamond is ?
B. As a diamond is hard?
C. Hard as a diamond is?
D. How hard is a diamond?

4. Silk, printing, paper, the compass and powder originated in China, and ?____? introduction in the west had far?reaching effects.?
A. these
B. their
C. those
D. its?

5. The problem is believed ?____? at the meeting two days ago.?
A. to have discussed?
B. to have been discussed?
C. being discussed?
D. having been discussed?

6. Ultrasonic sounds produce pulsed signals ?____? various defects in metal can be detected.
A. for which
B. of which ?
C. as a result of which
D. by means of which?

7. In computer programming, this model is ?____? to any of the others we have ever had.?
A. more superior
B. the more superior?
C. the most superior
D. superior?

8. The introduction of the coal pulverizing system in Daya Bay Nuclear Power Plant vastly reduces the time it took ?____?
A. to mill the coal
B. milling the coal ?
C. for milling the coal
D. while milling the coal?

9. Some members suggested ?____? a party for the visitor, but the Chairman didn’t approve.?
A. to arrange
B. arrange?
C. arranging
D. to be arranging?

10. If the maid comes today, please have her ?____? my shirts.?
A. washed
B. washing
C. to wash
D. wash?

11. ?____? racial problems have not been solved and full equality has not been attained yet, progress in these directions has been quite remarkable.?
A. Since
B. Although
C. Now that
D. Before?

12. ?____? they are alarmed at the interference with the natural balance of the environment, and its possible consequences.?
A. All in all
B. After all?
C. Above all
D. In all?

13. Rumor ?____? it that the man has been nominated many times for the Nobel Prize.?
A. has
B. spreads
C. carries
D. learns?

14. Just because I’m ?____? to him, my boss thinks he can order me around without giving me any respect.?
A. redundant
B. versatile
C. trivial
D. subordinate?

15. In our society, a wedding invitation is also an ?____?invitation for a gift.?
A.ingenious
B. intelligible
C. implicit
D. inclusive?

16. The strong scent of Kate’s perfume ?____? the air in the small room.?
A. radiated
B. permeated
C. extracted
D. dispersed?

17. An atom bomb would ?____? a city.?
A. destroy
B. damage
C. spoil
D. wreck?

18. The climate here is pleasant. It is ?____? all the year round.?
A. damp
B. humid
C. moist
D. wet?

19. The room is partly ?____? with a few old chairs.?
A. provided
B. decorated
C. beautified
D. furnished?

20. If Karl were more ?____? about her voice, she would never sing outside of the shower.?
A. punctual
B. practical
C. sensitive
D. objective?

21. Renewing my driver’s licence today is ?____?. Otherwise, the licence will expire at midnight.?
A. imaginative
B. feasible
C. imperative
D. empirical?

22. For those with poor eyesight, large print ?____? reading.?
A. facilitates
B. rectifies
C. reinforces
D. magnifies

23. Nancy complained about the ?____? air?conditioner she bought from the department store.?
A. inefficient
B. deficient
C. ineffective
D. defective?

24. ?____? the large amount of time devoted to listening every day, most college students do not listen effectively.?
A. However
B. If
C. Despite
D. Even?

25. If we continue to argue over minor points, we won’t get ?____?near a solution.?
A. anywhere
B. somewhere
C. elsewhere
D. nowhere

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