文档介绍：Section I Structure and Vocabulary
In each question, decide which of the four choices given will most plete the sentence if inserted at the place marked. Put your choice on the answer sheet. (20 points)
1. A variety of small clubs can provide _____ opportunities for leadership, as well as for practice in essful group dynamics.
[A] durable
[B] excessive
[C] surplus
[D] multiple
2. By turning this knob to the right you can _____ the sound from this radio.
[A] amplify
[B] enlarge
[C] magnify
[D] reinforce
3. Under the _____ confronting them it was impossible to continue the strike any longer.
[A] surroundings
[B] settings
[C] circumstances
[D] environments
4. We have the system of exploitation of man by man.
[A] cancelled
[B] abolished
[C] refused
[D] rejected
5. We shall probably never be able to _____ the exact nature of these sub-atomic particles.
[A] assert
[B] impart
[C] ascertain
[D] notify
6. This diploma _____ that you pleted high school.
[A] proves
[B] certifies
[C] secures
[D] approves
7. Up until that time, his interest had focused almost _____ on fully mastering the skills and techniques of his craft.
[A] restrictively
[B] radically
[C] inclusively
[D] exclusively
8. That sound doesn’t _____ in his language so it’s difficult for him to pronounce.
[A] happen
[B] take place
[C] occur
[D] run
9. The security guard _____ two men who were yelling in the courtroom.
[A] expelled
[B] propelled
[C] repelled
[D] dispelled
10. In most cases politicians are _____ as they seldom tell the truth.
[A] credible
[B] credulous
[C] incredulous
[D] incredible
11. He soon received promotion, for his superiors realized that he was a man of considerable _____.
[A] future
[B] possibility
[C] ability
[D] opportunity
12. Britain has the highest _____ of road traffic in the world—over 60 cars for every mile of road.
[A] density
[B] in