Mr. Smith is quite generous and warm-hearted, a person you can turn when having trouble.A.

Mr. Smith is quite generous and warm-hearted, a person you can turn when having trouble.
A. for whom
B. with whom
C. to whom
D. of whom

A. for whomB. with whom(答案→)C. to whomD. of whom解析：句意：斯密斯先生是很大方和热心肠的人，一个你有麻烦可以求助的人。这里使用了定语从句，先行词是a person，定语从句中用的是turn to sb，所以填to whom，选C。

这个答案应该是对的