这个句子的从句是什么从句?

问题描述:

这个句子的从句是什么从句?
i was glad that all my classmates were fond of the cake.

1.这个以that引导的从句是宾语从句.
2.宾语从句有三种:
1)及物动词之后的宾语从句.
如:I know that you are busy.
2)介词之后的宾语从句.
如:I want to talk about what I have done today.
3)形容词之后的宾语从句.
如:I am sure that I'll win.
3.此从句即为上述第三种情况,所以形容词glad之后的宾语从句.