1.The girl who had lunch with me yesterday is my girl friend.
2. The book wihich (that) I am reading is very interesting.
3.This is Mr.Li who repaired the car for us.
4.the student who/that is playing yoyo is only seven.
5.this is the man who I met in Australia last month.
6.the boss whom you want to see has already come.
7.there is nobody here whose name is Gao Yunfei.
8.my aunt whose photo I showed you yesterday will come to see us this evening.
9.don't forget to take the bag which is behind the door.
10.the factory which we visited yesterday is very famous in the world .