Question

A good friend is a person _______    we Turn for help when we are in trouble.

A．who

B．whom

C．to whom

D．to which

Answer 1

C

试题分析：考查定语从句。句义：朋友是你处于困境时可以求救的的人。把握关键词turn，构成短语：turn to sb,向某人求救，所以用介词to ,因为先行词是a person,是人所以用whom，所以C正确。