Question

—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

Answer 1

D

试题分析：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
点评：含蓄条件句要注意一些信息词，如with,without,but for but,or,otherwise等,虚拟语气考查还要注意判断出是与过去，现在还是将来相反，再根据其规则使用相应的结构。