请帮忙看一下下面这句英语句子的语法成分吧 谢谢

题目

请帮忙看一下下面这句英语句子的语法成分吧 谢谢
What shape the school of the future will take is uncertain, but most educators and observers agree that the future school will go electronic.
该句中的the school of the future will take is uncertain是不是省略that的定语从句修饰shape.

答案

What shape the school of the future will take is uncertain,主语从句 系 表语but most educators and observers agree that the future school will go electronic.主语 谓语 宾语从句