I went to see him ＿ him out. A.finding B.find C.only to find

题目

I went to see him ＿ him out. A.finding B.find C.only to find
答案为C,为什么加only?

答案

“only + to do”意为“……,结果却……”,即表示与句子谓语动作的目的相反的结果.
我去找他,但是却发现他不在.