Jane ___ have come to the party,but she ___ not find the exact time

题目

Jane ___ have come to the party,but she ___ not find the exact time
a.could; could b.should; could c.might; could
选A 这几个意思感觉差别不大,在这怎么分辨?

答案

B
Jane本该来party的,但是没能找到正确的时间.（所以没有来）