She brought with her three friends, none of I had ever met before.
A. them
B. who
C. whom
D. these
网友回答
A. them
B. who
(答案→)C. whom
D. these
解析：考查定语从句。本题的先行词是three friends，在定语从句中whom指代先行词作为of的宾语。Them和these不能引导定语从句。Who通常在句中做主语。句意：她带来了3个朋友，我以前一个也没有见过。故C正确。