1．　 The city was beautiful? We spent our vacation there?　

The city where we spent our vacation was beautiful?

5．　 The man is standing over there? I told you about him?　

The man who I told you about is standing over there?

除关系代词外，还有关系副词， when， where， why， 其中 when用来指时间，在定语从句中作时间状语。如： I never forget the day when I first came to the Great Wall? 而 where 则指地点，如： This is the house where the old man lives? 请看下面例句：

4．　 The picture was beautiful? She was looking at it?　

The picture that (which) she was looking at was beautiful?

3．　 I must thank the people? I got a present from him?　

I must thank the people who I got a present from?

2．　 The man was very kind? I talked to him yesterday?　

The man who I talked to yesterday was very kind?

1．　 The meeting was interesting? I went to it?　

The meeting that I went to was interesting?

10．　 I have to call the man? I picked up his umbrella after the meeting?　

I have to call the man whose umbrella I picked up after the meeting?

关系代词 whom， which 在定语从句中作介词宾语时，可以和介词一起放于先行词与定语从句之间，有时为了关系紧凑也可以将 whom 与 which 与先行词紧挨着书写，而将介词置于定语从句的后面，如：

That was the room in which we had lived for ten years? 或可以写作：

That was the room which we had lived in for ten years?

He was the man whom(who) you were looking for? 要注意的是此句的关系代词 whom 可以用主格取代，而 look for 是短语动词也不可将 for 放于定语从句之前。that 作关系代词作介词宾语时，不能紧跟介词，而只能将介词置于定语从句的后面。如： The man that we were talking about has come to our school? 这时不可用 about that … 请看下面例句：

9．　 I come from a country? Its history goes back thousands of years?　

I come from a country whose history goes back thousands of years?

8．　 The man called the police? His wallet was stolen?　

The man whose wallet was stolen called the police?

7．　 The people were very nice? We visited them yesterday?　

The people we visited yesterday were very nice?