应该是先行词做主语,定语从句不能做主语
The athletes,who are from China,have won serval gold medals.
The school,which is located in the south of this city,is very beautiful.
先行词做宾语
The police to whom the drunk driver is speaking is getting angry.
The country,which chairman Ma was from,is developing fast.
做定语
The children,whose mother is a good teacher,are so smart.
The building,whose decoration is ridiculous,is designed by Jim.
