—Excuse me, visiting hours are over．It' s time for you to leave．
—I' m sorry, I didn't know the time or I earlier．
A. will leave
B. would leave
C. had left
D. would have left
网友回答
A. will leave
B. would leave
C. had left
(答案→)D. would have left
解析：考查虚拟语气。本题的关键词是or ,or常用于含蓄条件句中。根据句意，or等同于If I had known the time,与过去相反，主句使用would/could/should/might+have done ,因此选答案D