I have many friends some are businessmen.A. of themB. from whichC. who ofD. of whom

问题补充：

I have many friends, some are businessmen.

A. of them

B. from which

C. who of

D. of whom

答案：

A. of them

B. from which

C. who of

(答案→)D. of whom

解析：这题考查定语从句，介词+which引导定语从句，of表示“从属关系”，of whom some=some of whom“其中有一些”，句意是：我有很多朋友，其中有一些是商人。

考点:考查非限制性定语从句的用法，有的定语从句要用介词+which/whom引导，介词的选择可以根据先行词，也可以根据定语从句的动词搭配，如果先行词是人，就用whom，不能是who，如果定语从句的先行词是物，就用which，不能用that。

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