帮我解释一下这道题：He has a large collection of books _______are written in English.
问题描述：
帮我解释一下这道题：He has a large collection of books _______are written in English.
A.manyB.many of which C.many in whichD. many of them
选哪一个为什么?
答
B,是定语从句,many of which=many of books
which用来代替books