---- If he had been warned, he that food yesterday.
---- Luckily he was sent to the hospital immediately.
A. would not take
B. would not have taken
C. had not taken
D. didn’t take
网友回答
A. would not take
(答案→)B. would not have taken
C. had not taken
D. didn’t take
解析：考查虚拟语气。本题是一个与过去事实相反的虚拟语气。从句使用过去完成时，主句用情态动词+have+done;句意：如果他被警告了，他就不会吃那个食物了。