20. Fiber optic cables can carry hundreds of telephone conversations .

　　A) homogeneously B) spontaneously C) simultaneously D) ingeniously

　　21. Excellent films are those which national and cultural barriers.

　　A) transcend B) traverse C) abolish D) suppress

22. A big problem in lemming English as a foreign language is lack of opportunities for　________interaction with proficient speakers of English.

　　A) instantaneous　 B) provocative C)　 dual　　　D) verbal

　　23. Because of the noise of traffic I couldn't get to sleep last night.

　　A) prevalent B) perpetual C) provocative D) progressive

　　24. His successful negotiations with the Americans helped him to his position in the government.

　　A) contrive B) consolidate C) heave D)intensify

　　25. When the farmers visited the city for the first time, they were by its complicated traffic system.

　　A) evoked B) undermined C) diverted D) bewildered

　　26. If Japan its relation with that country it will have to find another supplier of raw materials.

　　A) precludes B) terminates C) partitions D) expires

　　27. Among all the changes resulting from the entry of women into the work force, the transformation that has occurred in the women has generated great effects on society.

　　A) massive B) quantitative C) surplus D) formidable

　　28. Connie was told that if she worked too hard, her health would .

　　A)decay B)hopped C)darted D)degrade 【deteriorate 恶化】

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