The stories about William Tell, ____ this is one example, are very interestingA thatB of whichC about thatD in those
问题描述：
The stories about William Tell, ____ this is one example, are very interesting
A that
B of which
C about that
D in those
答
选B
that前不能有逗号所以A错
that 前也不能加介词所以c错
those 不是关系代词所以D错
而of +关系代词=where所以B正确