—Hey, what do you think of his speech last night?—I have no idea

—Hey, what do you think of his speech last night?—I have no idea. I arrived _____ find that he had almost finished it.
A、in order to
B、so as to
C、only to
D、ready to
【正确答案】：C
【题目解析】：in order to为了；so as to为了；ready to准备好；only to find才发现（表达出人意料或不愉快的意思）句意：—你觉得他昨晚的演讲怎么样？—我不知道。我到的时候才发现他几乎已经讲完了。