问题
选择题
She brought with her three friends，none of ________ I had ever met before.
A．them
B．who
C．whom
D．these
答案
答案：C
whom指代前面提到的three friends。
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She brought with her three friends，none of ________ I had ever met before.
A．them
B．who
C．whom
D．these
答案：C
whom指代前面提到的three friends。