I won't go to his dancing party this weekend unless invited.

问题描述:

I won't go to his dancing party this weekend unless invited.
invited 是过去分词还是I am invited省略了I am
是过去分词直接表被动还是被动句省略了主谓.

对啊,是种过去分词,就是表示自己是被邀请,一种被动的逻辑的关系,主语是I.