问题补充:
—Why didn’t you help him?
—I , but I didn’t have the money.
A. I did have
B. I would have
C. will have
D. must have
答案:
A. I did have
(答案→)B. I would have
C. will have
D. must have
解析:考查虚拟语气。主句与过去时相反,从句隐含在but后面的事实中。相当于:If I had the money, I would have helped him.