(·西安市高三二模)—John looks a bit upset. Did you tell him the bad news?—Yes but I him afte

问题补充：

(·西安市高三二模)—John looks a bit upset. Did you tell him the bad news?

—Yes, but I him after his birthday party.

A. should have told

B. must have told

C. shouldn have told

D. needn have told

答案：

(答案→)A. should have told

B. must have told

C. shouldn have told

D. needn have told

解析：选A句意：“约翰看起来有点伤心，你把那个坏消息告诉他了吗？”“是的，但我本应该在他生日后告诉他。”表示本应该做某事用should have done。