[36] They made an important decision ______ the end of the meeting.

　　A. in 　 B. by

　　C. on 　 D. at

　　[答案] D。 at the end of 固定搭配"在…结尾"，"在…底/末"。

　　[37] I can hardly heat the radio. Would you please ______?

　　A. turn it on 　 B. turn it down

　　C. turn it up 　 D. turn it off

　　[答案] C。 turn up 开大一些;turn off关掉; turn on 打开;turn down关小一些。

　　[38] The room ____ voices of the children.

　　A. filled with 　 B. was filled with

　　C. full of 　 D. was full with

　　[答案] B。 be filled with "充满"。

　　[39] ______ you understand the rule, you can do it well.

　　A. For 　 B. As

　　C. Once 　 D. While

　　[答案] C。 once连词，引导状语从句，"一旦"。

　　[40] When he was sixty years old, he _____ his hometown.

　　A. returned 　 B. returned back

　　C. returned to 　 D. went back

　　[答案] C。 return 归来，回来，不再和副词back连用。

　　[41] Please ______ that you have closed all the windows and turned off the lights before you leave the room.

　　A. make sure 　 B. be sure

　　C. bring out 　 D. hold up

　　[答案] A。 be sure 有把握，确信;make sure 务必，一定，千万。

　　[42] Her boy friend is a tall young man _____ glasses. He likes to ______ a face.

　　A. wear; make 　 B. wears; makes

　　C. with; make 　 D. wearing; making

　　[答案] C。 第一个空用介词短语，表示伴随;第二个空缺一个动词原型。

　　[43] -----Do you usually take a vacation? -----Yes, I like to go away______.

　　A. one time this year 　 B. once a year

　　C. one time a year 　 D. one time in a year

　　[答案] B。 次数 + a year/ month/ week 是常用固定搭配，表示一年/月/周一次。

　　[44] -----May I speak to Mr Tom, please? ----- I’m afraid he isn’t in. Would you like to ______ a message?

　　A. take 　 B. write

　　C. leave 　 D. tell

　　[答案] C。 leave a message留口信。

　　[45] Tom tried to make his parents _____ by making faces.

　　A. pleased 　 B. pleasing

　　C. please 　 D. to please

　　[答案] A。 及物动词的过去分词表示状态。

　　[46] Do you have trouble ______ the post office?

　　A. to have found 　 B. with finding

　　C. to find 　 D. in finding

　　[答案] D。 have trouble/difficulty in doing sth. 做什么事费力，费劲。

　　[47] If you _____ finished, I’ll start clearing up.

　　A. more or less have 　 B. more and less have

　　C. have more or less 　 D. have more and less

　　[答案] C。 more or less 或多或少，　大体上，在句中通常位于系动词，助动词，情态动词之后;行为动词之前。

　　[48] -----Water! -----_________. ------ I can’t eat this. It’s too salty.

　　A. Yes, sir? 　 B. What?

　　C. all right? 　 D. Pardon?

　　[答案] A。 Yes, sir?是服务员响应别人的叫喊，并用疑问语气询问对方喊叫有什么事。

　　[49] ----- how _____ are you driving now? -----A hundred miles an hour.

　　A. fast 　 B. long

　　C. far 　 D. quickly

　　[答案] A。 问速度，要用how fast提问。

　　[50] We all write ______, even when there’s not much to say.

　　A. now and then 　 B. by and by

　　C. step and step 　 D. more or less

　　[答案] A。 now and then = occasionally, from time to time, sometimes.