I don’t think Jack is a man to be when we are in trouble. He only cares for himself.
A. relied on
B. familiar with
C. turned to
D. based on
网友回答
(答案→)A. relied on
B. familiar with
C. turned to
D. based on
解析：短语辨析，四个选项分别表示信任、熟悉、转向，求助于和以……为基础，根据题意我认为杰克不是一个当我们陷入困境值得信任的人。他只是关心他自己。选A。