She brought with her three friends none ofI had ever met before.A. themB. whoC. whomD. th

问题补充：

She brought with her three friends, none ofI had ever met before.

A. them

B. who

C. whom

D. these

答案：

A. them

B. who

(答案→)C. whom

D. these

解析：考查定语从句中的非限制性定语从句。句意为：她带着她的三个朋友，他们三个中没有一个人我曾见过。表示“部分的词语+of+关系代词” 在非限制性定语从句指人只能用whom。