解答几题关系从句I am looking for the person.I have just hit his car.we have just bought a computer package.it teaches you how to play the piano.a man has gone to *.He shot two policemen.they signed an agreement.Under the agreement they would exchange students and teacher.I met the man.You bought the house from him.What do you think of the new material?My coat is made of this material.The man is the manager.She is speaking to him.The woman gave me some in

我在找一个人，我刚刚把他车撞了。
我刚刚买了一个电子材料包，它能教你怎么弹钢琴。
一个人刚刚入狱。他射杀了两名警察。
他们签署了一项协约，在这项协约下，他们将互相交换教师和学生。
我今天遇到了一个人，你的房子是从他那里买的。
你觉得这个新材料怎么样？我的大衣就是它做成的。
这个男士是经理。她正在与他说话。
这位女士给我了一些资料。我昨晚给她打了电话。
都翻译成中文了，主语什么的不成问题了吧。

1.I am looking for the person whose car I have just hit.
2.We have just bought a computer package which teaches you how to play the piano.
3.A man who shot two policemen has gone to *.
4.They signed an agreement under which they would exchange students and teacher.
5.I met the man from whom you bought the house.
6.What do you think of the new material of which my coat is made.
7.The man who she is speaking to is the manager.
8.The woman who I phoned last night gave me some informantion.
定语从句是由关系代词和关系副词引导的从句,其作用是作定语修饰主句的某个成分,这几个句子中的定语从句都是由关系代词引导的.关系代词有：who,whom,whose,that,which等.
关系代词所代替的先行词是人或物的名词或代词,并在句中充当主语、宾语、定语等成分.关系
代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致.
1）who,whom,that
这些词代替的先行词是人的名词或代词,在从句中所起作用如下：
Is he the man who/that wants to see you?
他就是你想见的人吗?（who/that在从句中作主语）
He is the man whom/ that I saw yesterday.
他就是我昨天见的那个人.（whom/that在从句中作宾语）
2) Whose 用来指人或物,(只用作定语,若指物,它还可以同of which互换）,例如：
They rushed over to help the man whose car had broken down.那人车坏了,大家都跑过去帮忙.
Please pass me the book whose (of which) cover is green.请递给我那本绿皮的书
3）which,that 它们所代替的先行词是事物的名词或代词,在从句中可作主语、宾语等,例如：
A prosperity which / that had never been seen before appears in the countryside.农村出现了前所未有的繁荣.（which / that在句中作宾语）
The package (which / that) you are carrying is about to come unwrapped.你拿的包快散了.(which / that在句中作宾语）