问题详情：
--- I did not see your sister at the lecture the day before yesterday.
---You ______her, since she went to see Chinese Zodiac---Jackie Chan’s 100th movie.
A. mustn’t have seen B. shouldn’t have seen
C. couldn’t have seen D. needn’t have seen
【回答】
C
知识点：虚拟语气与情态动词
题型：选择题
