I read about it in some book or other,dose it matter______it was?

问题描述:

I read about it in some book or other,dose it matter______it was?
A.where
B.what
C.how
D.which
选which.

D.which=which book 意思是:哪本书有关系吗?
不能是Awhere哪里,而前文已提到是书上,所以应是哪本书