---- If he , he that food.
---- Luckily he was sent to the hospital immediately.
A. was warned; would not take
B. had been warned; would not have taken
C. would be warned; had not taken
D. would have been warned; had not taken
网友回答
A. was warned; would not take
(答案→)B. had been warned; would not have taken
C. would be warned; had not taken
D. would have been warned; had not taken
解析：考查与过去事实相反的虚拟语气，其构成为if +主语+had done ,主句为would/could/might+ have done,根据句意如果他被警告的话，他就会不吃那种食物了。表示的是过去，所以选B。