Tom is a good friend of mine,____I can turn for help whenever I am in trouble.

问题描述:

Tom is a good friend of mine,____I can turn for help whenever I am in trouble.
Afor whom Bto whom Cwhom Dwith whom
选B

Tom is a good friend of mine,_to whom __I can turn for help whenever I am in trouble.
将后面这个从句补全比较好理
I can turn to Tom for help (向**求助),所以这里选择B