宾语从句

　　He said ( that) he felt sick.

　　I don’t know whether ( if) she still works in the factory. I take back what I said.

　　I can’t tell who is there.

　　Can you tell me where the Summer Palace is?

　　状语从句

　　The train had left when I got to the station.

　　I’ll go with you to the cinema this afternoon if I’m free.

　　The students went to the farm because the farmers needed some help. The earth is bigger than the moon.He was so tired that he couldn’t walk on.

　　定语从句

　　Find the girl who is wearing a red skirt.

　　Show me the picture that you like best.