---- If he had been warned, he ______ that food yesterday.---- Luckily he was sent to the hospital immediatelyA.would not takeB.would not have takenC.had not takenD.didn’t take
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B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。