1、The student who answered the question was John.
2、The boy whom you are talking to is my brother.
3、People who take physical exercise live longer.
4、I still remember the day when my brother joined the army.
5、He changed his mind,which made me very angry.
6、I'd like a room whose window looks out over the sea.
7、The weather in Beijing is colder than that in Guangzhou.
8、People in the world play basketball.
9、The city of New York is very large.
10、He looked at the street full of cars.
11、Italian is a Language very difficult to learn.
12、She has a garden much larger than yours.
13、The built a highway leading into the mountains.
14、We met a group of pupils returning from school.
15、What's the language spoken in that area?