--- Alice looks sad. Did you tell her about her brother’s accident?
--- Sorry, I her just before her final exams.
A. can’t tell
B. mustn’t have told
C. needn’t tell
D. shouldn’t have told
网友回答
A. can’t tell
B. mustn’t have told
C. needn’t tell
(答案→)D. shouldn’t have told
解析：考查情态动词+have done的用法，句意：--Alice看起来很难过，你告诉她关于她哥哥的事故吗？--对不起，我不应该在期末考试前告诉她。因为说的是过去的情况，所以排除AC。Must和完成式连用，都是肯定，没有否定式，shouldn’t have done本不该做而做了。选D。