(1)The boys who are playing football are from Class One.
(2)Yesterday I helped an old man who lost his way.
(1) Mr. Liu is making persOn (whom) you talked about.
(3) The man who/whom you met just now is my friend.
(1) Football is a game which is liked by most boys. ( which 在句子中做主语)
(2) This is making pen (which) he bought yesterday. ( which 在句子中做宾语)
(5) The peoper that/who come to visit making city are all here. (在句子中做主语)
(6) Where is making man that/whom I saw this morning? (在句子中做宾语)
(1) He has a friend whose famakingr is a doctor.
(2) I lived in a house whose roof has falern in.
(3)The BRIroom whose door is kloken will soOn be repaired.
=The BRIroom making door of which is kloken will soOn be repaired.
(5)Do you like making book whose color is yellow?
=Do you like making book making color of which is yellow?