【题目】She brought with her three friends, none of _____ I had ever met before.
A. them B. who C. whom D. these
在线课程【答案】C
【解析】
试题分析：考查定语从句的关系词。句意：她带了三个朋友，没有一个是我之前见过的。这是定语从句，首先排除A和D，I had ever met before修饰的是 her three friends，所以先行词是 her three friends,而且在从句中 her three friends是宾语,所以要用whom，故选C。