— Why didn’t you go to the dance last night?
— If I tired, I would have.
A. were not
B. hadn’t
C. haven’t been
D. hadn’t been
网友回答
A. were not
B. hadn’t
C. haven’t been
(答案→)D. hadn’t been
解析：考查虚拟语气与省略句。本题是一个与过去事实相反的虚拟语气，条件状语从句里使用过去完成时，主句形式为：情态动词+have done. 句意：如果不是我累了，昨天晚上我就去跳舞了。