Question

All that"s important is that you are doing your best and mov

Answer 1

all 是先行词,that's important 是定语从句,对其修饰限制.

在语法上,all that =what,所以,由定语从句知识可以跨越到名词性从句,即：what is important is that .

不必担心,背下来,见多了,就见怪不怪了.