“Why didn’t she e to the meeting yesterday?” “I’m not so sure. She ill.”
A. should be
B. should have been
C. must be
D. might have been
网友回答
A. should be
B. should have been
C. must be
(答案→)D. might have been
解析：从时间上看，由于是昨天没来开会，所以推测他生病也应指昨天，故排除A和C。从语境上看，既然上文说 I’m not so sure，那么说明说话者对自己的推测没有很大把握，故选D。