He called to tell me that you are in hospital, otherwise I nothing about it.
A. had known
B. wouldn’t have known
C. would know
D. would have known
网友回答
A. had known
B. wouldn’t have known
C. would know
(答案→)D. would have known
解析：句意：他打电话告诉我,你在医院，否则我根本就不知道。这里的otherwise相当于一个虚拟条件句=if he had’t called to tell me that you are in hospital,所以是和过去相反的虚拟语气，主句用would have done，而且根据意思应该是肯定，所以选D。