Villagers of the danger soon after the big earthquake in Japan，or more people would have lost their lives in the tsunami．
A. were warned
B. had been warned
C. have been warned
D. are warned
网友回答
(答案→)A. were warned
B. had been warned
C. have been warned
D. are warned
解析：村民被警告是事实而不是虚拟假设。所以选A.