【题目】Lucy invited many friends to dinner, some of __________ her parents had never met before.
A. who
B. whom
C. them
D. which
在线课程【答案】B
【解析】句意：露西邀请了很多朋友去吃饭，他们中的一些人露西的父母之前从没见过。本题考查定语从句，用whom指代前面的many friends， her parents had never met是修饰 many friends。故选B。