1．A football fan is a person ________ has a strong interest in football．
答案：who/that 句意：足球迷是对足球有强烈兴趣的人。分析句子成分可知，此处引导定语从句，从句中缺少主语，应用关系代词，指人可用who/that。
2．Is there anyone in your class ________ family is in the country?
答案：whose 此处引导定语从句，先行词为anyone。whose引导定语从句，在从句中作主语family的定语。
3．I shall never forget those years ________ I lived on the farm with the farmers．
答案：when 句意：我永远也不会忘记和农民们一起住在农场的那些年。years是表示时间的名词，且从句中不缺少主语和宾语，故用when引导定语从句，when在从句中作时间状语。
4．We all know that this is the second book ________ he has ever written．
答案：that 句意：我们都知道这是他曾经写的第二本书。当先行词前有序数词修饰时，要用that引导定语从句。
5．________ is often the case in India, foreign firms will face big barriers．
答案：As 此处为as引导的非限制性定语从句，as在从句中作主语，指代逗号后面整个主句的内容。
6．Those ________ have six or more close friends are described as “very happy”．
答案：who 句意：那些有六个或更多亲密朋友的人常被认为是非常幸福的。先行词为those (指人)时，常用关系代词who引导定语从句，且在从句中作主语。
7．Michel Crozier, with ________ help Daisy passed the exam, was one of the straight A students of the school．
答案：whose 句意：米歇尔·克罗泽是学校全优生之一，在他的帮助下黛西通过了考试。根据题干结构和句意可知，本句中含有一个非限制性定语从句，先行词为Michel Crozier，并且与从句中的名词help之间构成所属关系，故用关系代词whose。
8．The boy, of ________ the hair is red, is my brother．
答案：whom 句意：有着红色头发的男孩是我哥哥。of whom the hair＝the hair of whom＝whose hair。
9．They arrived at a farmhouse, in front of ________ sat a small boy．
答案：which in front of which还原即in front of the farmhouse。关系代词which指代先行词the farmhouse。
10．In our factory there are 2,000 workers, two thirds of ________ are women．
答案：whom two thirds of whom即two thirds of the 2,000 workers。关系词在从句中作介词of的宾语，因此用宾格whom。
11．It is such a good book ________ I want to buy immediately．
答案：as 根据句子结构可知，本句含有一个限制性定语从句。先行词为a good book，并且从句中缺少宾语，又由于先行词被such修饰，故关系代词只能用as。
12．Our life has reached the stage ________ we should decide what to do and how to do it by ourselves．
答案：where 句意：我们的人生已经走到了应该独立决定该做什么和如何去做的阶段了。分析句子结构可知，本句中含有一个定语从句。先行词the stage作为抽象地点，并且从句中缺少地点状语，因此应用关系副词where。
13．I don't know the reason ________ he came so late．
答案：why 句意：我不知道他来得那么晚的原因。先行词为the reason，且定语从句中缺少原因状语，故用why。
14．Suddenly I heard a man shouting at a driver, ________ car was blocking the street．
答案：whose 句意：突然我听到一个人对一个司机喊了起来，那个司机的车挡住了街道。设空处引导定语从句，在从句中作car的定语，修饰先行词a driver。
15．The way ________ he looks at problems is wrong．
答案：(that/in which) 先行词是the way，且定语从句中缺少方式状语时，定语从句的关系词可以是that, in which或者省略。
