题目内容：

We argue that it is necessary that we should learn the ancient chinese.
本句中“”是什么句?

优质解答

We argue that it is necessary that we should learn the ancient chinese.
We argue (主句)
that it is necessary that we should learn the ancient chinese（作argue 的宾语从句）
that we should learn the ancient chinese（在宾语从句中作主语从句,it 为形式主语）