(2013·陕西西北工大附中一模) a little earlier, you could have got a copy of his latest book.
A. If you would arrive
B. If you arrived
C. Should you arrive
D. Had you arrived
网友回答
A. If you would arrive
B. If you arrived
C. Should you arrive
(答案→)D. Had you arrived
解析：选D 考查虚拟语气。句意：如果你早到一会儿，你就会得到他的最新的一本书。表示与过去事实相反的虚拟语气，从句用过去完成时，省略if, had提前构成倒装。