问题
选择题
If the firefighters ________ in time, the fire would have resulted in many deaths in the hotel.
A．wouldn’t have arrived
B．hadn’t arrived
C．didn’t arrive
D．shouldn’t arrive
答案
答案：B
考查虚拟语气。这是一个与过去事实相反的虚拟语气。条件从句中用过去时，主句里用情态动词+have done;