That he wants is how to make his study better改错怎末改?为什么?
问题描述：
That he wants is how to make his study better改错
怎末改?
为什么?
答
把that 改成 what
因为句子的意思是,"他想要的是....."
只有"what"可以指代后面的内容
答
that-what
what=the thing that
答
T 改成 W
(1 What) (2 he wants ) (3 is) (4 how to make his study better).
2 作定语（定语从句）
1 + 3 +4：主语+ （谓语）be + 表语。
答
that 改成 what
由what 引导一个主语从句
答
that 改为 What
what引导的主语从句并在所包含的宾语从句中作主语~
双重身份只能用what不能用that