I would have come to see you earlier but Itoo busy.A. had beenB. wereC. wasD. would be

问题补充：

I would have come to see you earlier, but Itoo busy.

A. had been

B. were

C. was

D. would be

答案：

A. had been

B. were

(答案→)C. was

D. would be

解析：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。