177.She brought with her three friends,none of ------ I had

C
首先,She brought with her three friends句子成分齐全,而后半句并没有连词连接,不能作为独立句子出现,故为从句；
从句意上看,她带来了她的三个朋友,之前我从未见过.从句修饰friends,是定语从句,且被修饰的是人,故用who或whom；
由于在从句中是作为met的宾语出现的,故用宾格,即whom.
仅供参考