You her in her office last Friday; she's been out of town for two weeks.
A. needn't have seen
B. must have seen
C. might have seen
D. can't have seen
网友回答
A. needn't have seen
B. must have seen
C. might have seen
(答案→)D. can't have seen
解析：可联系答.案.网客服索取。