问题
选择题
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
答案
B。
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。
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