— I didn’t go to class last night because my car broke down.— You mine. I wasn’t using it.

网友回答

A. should borrow
B. might have borrowed
(答案→)C. could have borrowed
D. must have borrowed
解析：考查虚拟语气。句意：因为我的车抛锚了，昨晚我没去上课。——你本可以借我的啊！我没有用它。可知选C，“could+have+done”是虚拟语气，表示对过去事情的假设，意思是本来能够做某事而没有做。might have done 是过去可能做了，must have done是过去一定做了。选C。