1.he has learned _,no matter what happens and how bad _,seems tody,life goes on and it will be bett

1.he has learned _,no matter what happens and how bad _,seems tody,life goes on and it will be bett

that，it

后面一个肯定用it，表示泛指一种状态。前面有两种填法：一是that，这是个宾语从句，因为后面有状语从句，最好保留，当然省略也可以；二是it that，it做learn的宾语，that从句做it的同位语从句。

that ,as... he has learned that life goes on and it will be better ,no matter what happens and how bad, as seems today..

that it 再看看别人怎么说的。