27 Prior to____________ the formal speech, first he will introduce himself. A. delivering B. deliver
C. being delivering D. being delivered 正确答案：A
解析：本句中介词to需要动名词来做宾语，而且根据句意判断不需要用被动语态，所以应选A。整句话的意思是：在做正式的演讲之前，他会先介绍一下自己。
28 I don't mind____________by bus, but I hate____________in queues. A. to travel ... standinge
B. having traveled ... standing C. traveling ... to stand D. traveling ... standing 正确答案：D 解析：本句中第一个空白处前的动词mind需要动名词来做宾语，第二个空白处前的动词hate也需要动名词来做宾语，而且根据句意判断不需要用完成时态，所以应选D。整句话的意思是：我不介意乘公共汽车出行，但我不喜欢站着排队。
29 What about____________ double quantities of everything today? We have hardly time to go____________next week. A. buying ... to shop B. buy ... shopping C. buying ... shopping D. to buy ... shopping 正确答案：C
解析：本句中第一个空白处前的介词about需要动名词来做宾语，第二个空白处前的动词go也需要动名词来做宾语，所以应选C。整句话的意思是：今天什么东西都买双份怎么样？下周我们很难有时间来买东西了。
30 We had some trouble ____________ the house and nobody seemed ____________ where it was.
A. in finding ... knowing B. finding ... to know C. to find ... knowing D. to find ... to know 正确答案：B
解析：本句中第一个空白处练习的是have some trouble in doing sth.句型，意思是“……有麻烦”；第二个空白处前的动词seem要求用动词不定式来做宾语，所以应选B。整句话的意思是：找那栋房子时我们遇到点麻烦，好像谁也不知道它在哪儿。
31 We can't imagine ____________ in the entrance examination, for she has never been to school.
A. she succeeding B. her succeeding C. she succeed D. her to succeed 正确答案：B 解析：本句中动词imagine需要动名词来做宾语，并根据句意要用动名词的复合结构，即“逻辑主语（物主代词）+动名词”，所以应选B。整句话的意思是：我们很难想像她成功地通过了入学考试，因为她从来没上过学。
32 I don't like____________at me. A. them laughing B. their laugh C. them laugh
D. them to have laughed 正确答案：A
解析：本句中动词like需要动名词来做宾语，并根据句意要用动名词的复合结构，即“逻辑主语（物主代词）+动名词”，这里的物主代词也可换成人称代词的宾格形式，所以应选A。整句话的意思是：我不喜欢他们嘲笑我。
33 We suggested____________in hotels but the children were anxious____________out. A. sleeping ... to camp B. sleeping ... camping C. to sleep ... to camp D. to sleep ... camping 正确答案：A
解析：本句中第一个空白处前的动词suggest需要动名词来做宾语；第二个空白处练习的是be anxious to do sth.句型，意思是“着急做……”，所以应选A。整句话的意思是：我们建议在宾馆里过夜，可孩子们却急着要在外面露营。
34 I have no objection____________the evening with them. A. to spend B. to spending C. of spending D. spending 正确答案：B
解析：本句练习的是have no objection to doing sth.句型(这里to是介词)，意思是“不反对做……”，所以应选B。整句话的意思是：我不反对和他们一起过夜。
35 After____________for the job, you will be required to take a language test. A. being interviewed B. interviewed C. interviewing
D. having interviewed 正确答案：A
解析：本句中介词after需要动名词来做宾语，而且根据句意判断需要用被动语态，所以应选A。整句话的意思是：在这份工作的面试之后，你将按要求进行一次语言测试。
36 The match was cancelled because most of the members____________ a match without a standard court. A. objected to having B. were objected to have C. objected to have
D. were objected to having 正确答案：A
解析：本句练习的是短语object to doing sth. (这里to是介词)，意思是“反对做……”，所以应选A。整句话的意思是：比赛被取消了，因为大多数队员反对在没有正规场地的情况下进行比赛。
37 Jean did not have time to go to the concert last night because she was busy____________for her examination. A. to prepare B. to be prepared C. preparing
D. being prepared 正确答案：C
解析：本句练习的还是be busy doing sth.句型，意思是“忙于做……”，所以应选C。整句话的意思是：吉恩没时间去听音乐会，因为她正在忙着准备考试。
38 It is no good____________remember grammatical rules. You need to practice what you have learned. A. trying to B. to try to C. try to D. tried to 正确答案：A
解析：本句练习的是it is no good doing sth.句型，意思是“……没有好处”，所以应选A。整句话的意思是：努力去记语法规则没什么好处。你需要不断练习你所学到的东西。
39 After ____________him better, I regretted____________ him unfairly. A. getting to know ... to judge
B. getting to know ... to have judged C. getting to have know ... judging D. getting to know ... having judged 正确答案：D
解析：本句中第一个空白处前的介词after需要动名词来做宾语，第二个空白处前的动词regret也需要动名词来做宾语；而且，根据句意判断第一个空白处不需要用完成时态，而第二个空白处需要用完成时态，所以应选B。整句话的意思是：在逐渐了解他之后，我为自己当初对他的不公正判断而感到愧疚。
40 He is looking forward to____________his holiday in Britain. A. spend
B. have spent C. spending
D. having been spending 正确答案：C
解析：本句练习的是短语look forward to doing sth. (这里to是介词)，意思是“向往，盼望做……”，所以应选C。整句话的意思是：他在盼望着去英国度假。
41 Before____________the house, you should get a surveyor____________it over. A. buying ... looking
B. having bought ... to look C. buying ... to have looked D. buying ... to look 正确答案：D
解析：本句中第一个空白处前的介词before需要动名词来做宾语，并根据句意判断不需要用完成时态；第二个空白处练习的是get sb. to do sth.，意思是“请某人做某事”，所以应选D。整句话的意思是：在买房子之前，你应该请一位测量员来好好看看。
42 In some countries people favor____________ together even though there is much more space. A. to stay B. stay C. staying D. stayed 正确答案：C 解析：本句中动词favor需要动名词来做宾语，所以应选C。整句话的意思是：在某些国家，即使没有足够的空间，人们也喜欢呆在一起。
43 — Why was Fred so upset?
— He isn?t used____________criticized. A. be B. to be C. to being
D. having been 正确答案：C
解析：本句练习的是be used to doing sth.句型(这里to是介词)，意思是“习惯于……”，所以应选C。整句话的意思是：——佛瑞德为什么如此不安？——他还不习惯被批评。
44 It?s no use ____________to get a bargain these days. A. to expect B. expecting C. wanting D. you expect 正确答案：B
解析：本句练习的还是it is no use doing sth.句型，意思是“……没有用”，所以应选B。整句话的意思是：这些日子里，想讨价还价是没有用的。
45 — Why were you so late for work today?
— ____________to the office was very slow this morning because of the traffic. A. Driving B. I drove C. To drive
D. That I drove 正确答案：A
解析：本句缺少主语，动词不定式和动名词都可以做主语，动名词做主语表示一般或抽象的多次性行为，不定式做主语往往表示具体的或一次性的动作。根据句意，这里应该用动名词来做主语，表示经常性的行为。所以，正确答案应该是A。整句话的意思是：——你今天上班为什么迟到这么久？——因为堵车，今天早上开车来单位走得特别慢。
46 It was impolite of him____________ without____________good-bye. A. to leave ... saying B. leaving ... to say C. to leave ... to say D. leaving ... saying 正确答案：A
解析：本句第一个空白处练习的是it is +adj.+of sb. to do sth.句型，意思是“某人做……是……”；第二个空白处前的介词要求动名词来做宾语，所以应选A。整句话的意思是：他没