英语i'm so happy that you got the copy machine to work.

英语i'm so happy that you got the copy machine to work.
i'm so happy that you got the copy machine to work.
对于这句话我想问两个问题,1.这句话是定语从句嘛.2.这句话主语是THAT后面的那段部分嘛,
恳请英语高手指导说明一下.