“Would you have told him the answer had it been possible?” “I would have but I ＿＿＿＿so bus

问题补充：

“Would you have told him the answer had it been possible?”

“I would have, but I ＿＿＿＿so busy then.”

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：该句叙述当时的真实情况，故用C。