All that's important is that you are doing your best and moving in the right direction.这句话中...All that's important is that you are doing your best and moving in the right direction.这句话中两个that分别是什么成分?

We think it's important that all children learn to read and write的意思 This is such a useful information that all of us believe it's very important. 一道英语时态题 It's very important that you ____me all the information.(give) This is so useful an information that all of us believe it's very important. That's all That's All thats important is that you are doing your best and moving in the right direction 为什么要填ALL答案说All作thats important 定语从句的先行词（为什么要用ALL作先行词,thats important 不能作先行词,怎样才为先行 Thats all night that's all That's all that's all right. that's all right. That's all right. That`s all that's all That's all This is that we all think it's very important.A such useful information B so useful information It's a general belief that quality is____the most important of all.A what is B what it is ____that's important is that you are doing your best and moving in the right direction.A.one B.all