I don't think he is a person you can ___ for help.为什么是turn to,不能用get to?

问题描述:

I don't think he is a person you can ___ for help.
为什么是turn to,不能用get to?

turn to sb for help是固定搭配 求助某人

就是turn to 固定搭配
turn to sb for help 是向某人求助的意思