271. Wait for me for a few more minutes. I am _____ to a letter from one of my former classmates at college and will finish writing very soon.

　 A. replying　　　　　　　　　　 B. answering to　　　　　　 C. replying to　　　　　　　 D. answering for

270. Hoping that they would ______ the rent a little, we pointed out all of the flaws in the apartment.

A. reduced　　 　　　　　 B. reduce　　 　　　　　　 C. increase　　 　　　　　　 D. fell

269. Although he didn't mention any names, everyone knew _____ he was _______.

A. who … referring to 　　　 B. that … referring to　 C. who … refers to　 　 D. that … referred to

268. Yesterday one of my classmates sent me an invitation to take part in an English evening, but I _____ for the reason that I caught a bad cold.

A. refused　　 　　　　　　　　　　 B. accepted 　　　　　　　　 C. received　　　　　　　　　 D. took

267. After throwing the lamp against the wall and turning over the dining room table, she deeply ______ her temper.

A. regretted losing　　 B. regretted being lost 　 C. regretted to lose　 　　 D. regretted to be lost

266. At first he did not realize that he had succeeded in making a computer that ran on solar power(太阳能). “Realize” in the sentence means “___________”

A. understand　　 　　　　 B. get to　 　　　　　　　　　 C. reach　　　 　　　　　　 D. come true

265. Solids can usually be turned into liquids and liquids into gases if we _____ their temperatures high enough.

A. rise　　 　　　　　　　　　　　　　 B. go up　　 　　　　　　　　　　 C. increase　　 　　　　　 D. raise

264. The two brothers once quarreled _____ each other _____ the money when their father died, and now they have made up their quarrel.

　 A. with; about　　　　　　　　　 B. at; about　　　　　　　　　 C. to; over　　　　　　　　　　 D. on; for

263. --- When will that opera be ______?

--- I don’t know. But I hope they can _____ next Sunday.

A. put on; put on it　　　　 B. put on; put it on　　　　 C. put off; put off it　　　　　　 D. put in; put it in

262. Sorry, I didn’t make a call to you because I forgot your telephone number. I should have _____ in my notebook.

A. dropped in it　　　　　　 B. put it down　　　　　　　 C. dropped it in　　　　　　 D. put down it