But for the metal cage to pull the miners to safety, the miners in Chile in less than twenty-four hours.
A. would not be rescued
B. would not have been rescued
C. would be rescued
D. would have been rescued
网友回答
A. would not be rescued
(答案→)B. would not have been rescued
C. would be rescued
D. would have been rescued
解析：
这题考查虚拟语气的用法：but for“要不是”，相当于：if it had not been for…,主句要用与过去相反的虚拟语气，would have done，要不是金属笼子拉矿工到安全地方，在智利的矿工不能在不到二十四小时内获救。选B。