问题
单项选择题
—I didn't see her yesterday.
—Of course, you ______, because she had gone to a trip.
A. can't
B. may not have
C. can't have
D. mustn't have
答案
参考答案：D
解析： mustn't have done意思为一定没做某事。题干想表达的正是“你不可能看到过她”之意，D最合适。故选D。