He saw my companion and greeted her briefly, and then, to my surprise, instead of treating me as a stranger he acted as if he already knew me and that I was special to him.
请问老师that I was special to him其中的that是什么从句
that 属多余,删去:
He saw my companion and greeted her briefly, and then, to my surprise, instead of treating me as a stranger he acted as if he already knew me and I was special to him.