I would have come to see you earlier, but I__________too busy.
A. had been B. were C. was D. would be
I would have come to see you earlier, but I__________too busy.
A. had been B. were C. was D. would be
C
整个句子前半部分为虚拟语气,与过去的动作相反,而后半部分but提醒我们动作是事实,所以用was。