【题目】If we a table in advance, we wouldn't be standing here in the long queue.
A. reserve B. reserved
C. have reserved D. had reserved
在线课程【答案】D
【解析】考查虚拟语气。句意：如果我们事先预定了一张桌子，我们就不会站在长长的队伍里了。从句是对过去的虚拟，与过去事实相反，故从句中应使用过去完成时，主句与现在事实相反，使用would/could/might/should+do。根据题意，故选D。