I went back to the cinema to look for my keys,only_____

题目

I went back to the cinema to look for my keys,only_____
A:finding it shut
B:having found it gone
C:to find it closed
D:to have found them

答案

C only to do 表示出乎意料的结果状语.
find +宾语+宾补.
我回到影院去找钥匙,结果发现它已经关门了.