1.Do you know the young lady who is talking with your mother
2.Does the teacher know the student who planted the tree?
3.The letter I received from him yesterday is very important
4.Where is the scientish who gave us the talk yesterday?
5.I hate the people who talk much but do little
6.I'm looking at the photograph which you sent me with your letter.
7.I don't like the people who don't help others when they are in trouble
8.I work for a company which sells cars