问题补充:
—I didn’t go to work yesterday because my car broke down.
—You mine.I wasn’t using it then.
A. might borrow
B. could have borrowed
C. must have borrowed
D. ought to borrow
答案:
A. might borrow
(答案→)B. could have borrowed
C. must have borrowed
D. ought to borrow
解析:此题考查虚拟语气的用法。根据句意“你本来可以用我的车子,因我当时不用它,而你未用” 可知该空表示的是与过去事实相反的假设,用could have done。