If you firm action to deal with it at once, you wouldn’t suffer heavy losses tomorrow.
A. take
B. took
C. has taken
D. had taken
网友回答
A. take
(答案→)B. took
C. has taken
D. had taken
解析：考查if的非真实条件句：句意：如果你立刻采取有力的行动解决它，明天你就不会遭受严重的损失了。主句是和将来相反，用would do表示虚拟，if条件句是和现在相反用过去时，表示虚拟，选B。