(·北京高考)If we a table earlier we wouldn't be standing here in a queue.A. have booked　

问题补充：

(·北京高考)If we a table earlier, we wouldn be standing here in a queue.

A. have booked

B. booked

C. book

D. had booked

答案：

A. have booked

B. booked

C. book

(答案→)D. had booked

解析：选D考查虚拟语气。句意：如果我们早点儿预订了餐桌，(现在)就不必在这儿站着排队等候了。本句是混合虚拟语气，从句是对过去情况的假设，主句是对现在情况的虚拟，故从句用过去完成时。