题目

---- 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 答案：A 解析:  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。() —Excuse me. Will you please tell me the way to the railway station?—Oh, sorry, I don’t know. You ________ go and ask that policeman.A. may B. mustC. wouldD. should