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　　180. I remember her face but I cannot _____ where I met her.

　　A. recall B. remind C. remember D. remark

　　181. He has left his book here on _____, so that you can read it.

　　A. purpose B. intention C. aim D. meaning

　　182. The magician picked several persons from the audience and asked them to help him with the performance.

　　A. by accident B. on occasion C. at random D. on an average

　　183. The open university was started in order to help those who _____ having a university education when they were young.

　　A. stopped B. failed C. missed D. ceased

　　184. His _____of the aeroplane was correct in every detail and could really fly.

　　A. shape B. pattern C. design D. model

　　185. If you _____ your demand, then maybe you will have more chance of getting what you want.

　　A. conduct B. dismiss C. grant D. moderate

　　186. Don't _____ the news to the public until we give you the go-ahead (许可，准许).

　　A. release B. discard C. relieve D. retain

　　187. The storm sweeping over this area now is sure to cause _____ of vegetables in the coming days.

　　A. rarity B. scarcity C. invalidity D. variety

　　188. Jack almost fell off the cliff, but managed to _____ until help came.

　　A. keep on B. catch on C. count on D. hang on

　　189. Experts say walking is one of the best ways for a person to _____ healthy.

　　A. preserve B. stay C. maintain D. reserve

　　190. Expected noises are usually more _____ than unexpected ones of the like magnitude.

　　A. manageable B. controllable C. tolerable D. perceivable

　　191. It isn't so much whether he works hard; the question is whether he works _____.

　　A. above all B. in all C. at all D. after all

　　192. Mary had taken _____ to see that her guests had everything that they could possibly want.

　　A. efforts B. pains C. attempts D. endeavors

　　193. He ate what he could, and gave the _____ of the food to the birds.

　　A. remain B. uneaten C. rest D. part

　　194. The government placed _____ on the numbers of foreign cars that could be imported.

　　A. limitations B. restraint C. requirements D. restrictions

　　195. We won't know whether it will be successful. We won't know whether there will be good _____.

　　A. ends B. results C. effects D. causes

　　196. No one imagined that the apparently _____ businessman was really a criminal.

　　A. respectful B. respectable C. respective D. respected

　　197. At first the institute refused to purchase the telescope, but this decision was _____ revised.

　　A. occasionally B. consequently C. successively D. subsequently.

　　198. The speaker _____ several other subjects in the course of his talk but mostly kept himself to the main topic.

　　A. held on B. worked out C. touched on D. kept out of

　　199. Comrade Li Dazhao, _____ librarian of Beijing University, was one of the founders of the Chinese Communist Party.

　　A. sometimes B. sometime C. some time D. some times

　　200. Alice was very sorry to hear that her grandmother had _____ two days before.

　　A. broken off B. passed off C. given away D. passed away