― Catherine looks sad. Did you tell her about the accident?

― Yes, but I ________ her just before her final exams. 

       A. shouldn’t tell                                               B. mustn’t have told     

C. needn’t tell                                                  D. shouldn’t have told

 — Catherine looks sad. Did you tell her about the accident?

— Yes, but I ________ her just before her final exams.

A. shouldn’t tell          B. mustn’t have told     

C. needn’t tell            D. shouldn’t have told