Why did you keep it a secret from me ? I about it .
A. should be told
B. ought to have been told
C. should have told
D. ought to be told
网友回答
A. should be told
B. ought to have been told
C. should have told
D. ought to be told
解析：表示应该做某事，但事实上没做到，应用“should / ought to +不定式的完成式”，本句为被动语态。