He had a lot of friends none of could lend him any money.A. whomB. them　C. which　D. who

问题补充：

He had a lot of friends, none of could lend him any money.

A. whom

B. them

C. which

D. who

答案：

(答案→)A. whom

B. them

C. which

D. who

解析：none of whom could ...为非限制性定语从句