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288. Astronomers and scientists think that a black hole is a region of space _____ which matter has fallen and _____ which nothing can escape.

   A. into; from         B. towards; towards    C. out of; from           D. through; through

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287. We all do more speaking more speaking _____, even when we have a break after class.

   A. now and then       B. by and by         C. step by step           D. more or less

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286. During the test we were supposed to stay in our seats, keep our eyes on our work, _____ to anyone.

   A. but could not talk    B. instead of speaking   C. rather than speak        D. and not speak

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285. _____ so much electrical equipment, wood and paper in one place, there a danger of fire.

   A. For              B. In               C. with             D. By

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284. He will pass two milestones _____, that is, he will receive his master’s degree and find a challenging job.

   A. long ago          B. for long          C. before long        D. long before

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283. The president’s speech was _____ boring; it is, in fact, rather inspiring and interesting.

   A. anything but       B. nothing but        C. no more          D. all but

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282. Among the films being nominated(提名) _____ directed by Zhang Yimou.

   A. is a popular film        B. is as popular       C. a popular film      D. one is popular

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281. Jason has been preparing carefully for his English examination so that he could be sure of passing it at his first _____.

   A. purpose           B. desire            C. attempt           D. intention

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280. _____ a fire, hotel guests are asked to remain calm.

   A. As a result of       B. In the event of      C. By reason of       D. In the time of

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279. The study    you have been making _____ the ancient Chinese characters is an instructive job.

   A. to               B. for              C. of               D. from

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