_____that's important is that you are doing your best and moving in the right direction.A One B All C Everything D Anything 为什么选B?
问题描述：
_____that's important is that you are doing your best and moving in the right direction.
A One B All C Everything D Anything 为什么选B?
答
这个是用的排除法，用其它的都不合适啊，主要靠语感。
答
all that 相当于一个词what，all that表示的是同位语从句，all是先行名词，that is important是同位语从句。而其他选项没有和that搭配的同位语从句的用法。
答
重要的是你在尽最大的努力,并且朝着正确的方向前进.
that's important 是定语从句,修饰all（一切）.
如果A项变成the one也是可以的.因为you are doing your best and moving in the right direction是具体的事情,是有特指的.而all表示一切,就不必再用the了.
everything每一件事,anything任何事.语意上与you are doing your best and moving in the right direction不合.