--- Why didn’t you tell me the truth that day?
--- I , but you for Beijing.
A. would have; left
B. would; had been away
C. would have; had left
D. had; were away
网友回答
A. would have; left
(答案→)B. would; had been away
C. would have; had left
D. had; were away
解析：考查虚拟语气，根据didn't you tell me可知，这是对过去的虚拟，答句中前半句是虚拟，but后面是事实，句意为，我本来要告诉你的，但是你离开去北京了。