That was what I thought his answer would be这个句子所使用的语法有那些?

That was what I thought his answer would be这个句子所使用的语法有那些?
That was what I thought his answer would be
这个句子所使用的语法有那些?

That was what I thought his answer would be这个句子所使用的语法有那些?
表语从句和宾语从句
放在Be动词后面的是表语从句：what I thought his answer would be,表语从句中有嵌套了宾语从句.行为动词thought后面的是宾语从句：his answer would be what. 由于what是特殊疑问词,所以要置于句首,那就是：I thought his answer would be.

That 是主语
was 连系动词
what his answer would be 是表语从句
I thought 插入语

那正是我预料他会回答的答案

那就是我认为他应该回答的内容。
主要结构：系表结构，然后是双重补语