which引導(dǎo)什么從句？

ｅａｃｈ ｏｆ ｗｈｉｃｈ一般引導(dǎo)的是非限定性定語從句。如： Ｉ have three houses, each of which is worth a lot. 再看另外的例句： Ｉ ｈａｖｅ ｔｗｏ ｓｏｎｓ， ｂｏｔｈ ｏｆ ｗｈｏｍ ａｒｅ ｄｏｃｔｏｒｓ． 兩句分別相當于： I have three houses and each of them is worth a lot. I ｈａｖｅ two sons and both of them are doctors.