I intended to have come yesterday afternoon to give you your photographs,but I had to attend a meeti

题目

I intended to have come yesterday afternoon to give you your photographs,but I had to attend a meeting.However,I think it was nothing a big deal.It was impossible for anyone_____ these photographs before,because I had them developed today.
A saw B to have seen C to see D seeing
为什么?在帮我翻译一下这小段啦

答案

B to have seen 因为后有Before
我原本打算昨天下午把你的照片给你,但是我不得不参加一个会议.不过,我想那也算不上多大点事,任何人要提前看到这些照片是不可能的,因为我今天才洗出来.