We our lives had it not been for the policeman.
A. would have lost
B. should lose
C. might lose
D. could have lost
网友回答
(答案→)A. would have lost
B. should lose
C. might lose
D. could have lost
解析：考查虚拟语气。句意“要不是警察帮忙，我们已经失去生命了。”had it not been for...是省略了if的虚拟条件句，主句用would have done。故选A。