---- Would you have gone shopping had it been possible?
---Yes, but I ___ busy doing my homework.
A. was B. were C. had been D. would be
---- Would you have gone shopping had it been possible?
---Yes, but I ___ busy doing my homework.
A. was B. were C. had been D. would be
A
问句是一个与过去事实相反的虚拟语气，答语中的 “but”, 引出了一个过去事实,说明不去购物的理由。