23. ---The smell in the room is really terrible.

---You said it. Let's keep all the windows _____ .

A. closed

B. open

C. opening

D. to open

解析：keep+宾语+形容词 '使...保持某状态' keep+宾语+动词ing形式，也表示“使...保持某状态”但是宾语是后面动词的发出者，如:keep you waiting ,根据题意，房间里味道不好，要把窗户打开，而不是关上。答案是B。

24. ---____ the Internet _____ in your school?

---Yes, but the computer in our office has often broken down.

A. Is, used

B. Is, using

C. Does, use

D. Has, used

解析：根据句意，internet是被使用，应该用被动语态。答案为A。

25. ---Do you often get on-line?

---Yes. I ______ most of my time on it. It's a good way to kill time.

A. cost

B. spend

C. pay

D. take

解析：cost 一般物作主语，“花费” spend '花费时间或金钱' pay 支付(钱) take一般指花费时间。答案为B。

26. ---Did Tom’s parents go to the meeting yesterday?

---Yes, ____ of them did, but ____ spoke.

A. each, none

B. both, none

C. neither, both

D. both, neither

解析：根据题目意思，是父母两个人去了会议，后面有个but，表示转折，应该是都没有发言，答案为D。Both 两者都，neither两者都没有。

27. ---I eat ____ vegetables and ___ meat than I did last year.

---That's why you're getting fatter.

A. fewer, more

B. more, less

C. least, more

D. many, much

解析：第二句话的意思是：这就是你越来越胖的原因。那么可以判断第一句话是跟去年相比，我吃更少的蔬菜，更多的肉。而蔬菜是复数，只能用fewer来修饰表示比较少。less修饰不可数名词表示比较少。more是many 和much的比较级，可以修饰可数和不可数名词。答案为A。

28. ---_____ is the population of the town?

---Over 20,000 .And a third of the population ____ workers of the car factory.

A. What, are

B. How many, are

C. What, is

D. How many, is

解析：对人口提问用how large 或what . The population of ....作主语时谓语动词用单数。当主语表示人口的百分之几，几分之几时，谓语动词用复数形式。答案为A。

29. ---I tried to make Kate ____ her mind, but I found it hard.

---Well, I saw you_______ that when I went past.

A. change, do

B. changes, doing

C. to change, do

D. change , doing

解析：make是使役动词，后面接不带to的不定式作宾补。表示“让某人做某事”。see是感官动词，接现在分词做宾补，强调动作正在进行。本题的意思是：------我试图让凯特改变她的想法，但是我发现很难。-------是的，我经过时看见你正在劝她。答案是D。

30. ---Sorry，I am late.

---It doesn’t matter. The meeting ___ for just several minutes

A. has begun

B. has started

C. has been on

D. had been on

解析：begin,start是瞬间动词，不能与表示一段时间的状语一起用在完成时中。而根据题目可看出，是现在时，所以不能用过去完成时。答案为C。

31. ---I feel tired and sleepy.

---Why not stop _____?

A. to work

B. to have a rest

C. having a rest

D. to go on with your work

解析：stop to do sth.表示停下了去做另外的事。stop doing sth. 表示停止做某事。句子的意思是我感觉很累，很想睡。对方肯定是劝她停下手上的事去休息。答案是B。

32. ---Did you notice the boy come in?

---No, I didn't because I _______a film.

A. had watched

B. have watched

C. was watching

D. am watching

解析：句子的意思是：----你注意到刚进来的男孩了吗?----不，我没有，我正在看一个电影。整句是过去时，表示正在做的事，应该用过去进行时。答案为C。

33. ---Could you tell me _____? I must find him.

---Sorry, I have no idea. But he was here just now.

A. where Tom was

B. where has Tom gone

C. where can I find Tom.

D. where Tom is

解析：本题是考查宾语从句的用法。由what,where,who等疑问词引导的宾语从句要用陈述语气，疑问词+陈述句，而不是疑问词+一般疑问句。Could 此时表示委婉的请求语气，而不是过去时。答案为D。

34. ---Shall I tell Mike about it?

---No, you _____. He's already been told.

A. mustn't

B. can't

C. don't

D. needn't

解析：mustn‟t 表示“禁止，不许” can‟t “不能” don‟t”不...” needn‟t “不必要”根据题目意思，他已经知道了，不存在着禁止，不能的意思。Don‟t也不能回答Shall 引导的一般疑问句，答案为D。

35. ---I‟m ______ in what _____ you.

---Well, don‟t follow suit. Just do what you like.

A. interesting, interests

B. interested, interests

C. interest, interests

D. interest, interesting

解析：be interested in 对...感兴趣,人作主语 ;interesting 令人感兴趣的,物作主语；interest使人感兴趣。答案为B。

36. ---I‘m too busy_______ to my family often.

---Why not call them instead?

A. writing

B. to write

C. written

D. write

解析：too....to 太....而不能......我太忙而不能经常给我家里人写信。答案为B。