The only thing ___ matters is to find our way out what that which as 选哪个?为什么?

问题描述:

The only thing ___ matters is to find our way out what that which as 选哪个?为什么?

我觉得that 和which 都可以 作定语从句的连接词
翻译过来就是 唯一重要的事是找到出路