Without the timely aid from different provinces, the affected people in those areas the difficulty.
A. wouldn’t overe
B. mustn’t have overe
C. hadn’t overe
D. wouldn’t have overe
网友回答
A. wouldn’t overe
B. mustn’t have overe
C. hadn’t overe
(答案→)D. wouldn’t have overe
解析：考察虚拟语气。本句是一个含蓄条件句，表示的与过去事实相反的虚拟语气，而且是与过去事实相反。主句中使用“情态动词+have done”的形式。句意：如果不是来自不同省份的及时帮助，在这些受影响地区的人本不会克服这些困难。根据前半句，说明是与过去事实相反，故D正确。