题目内容：

英语短文填空milk is one of our most横线important of food
横线处应填上什么?
抱歉抱歉，原题是milk is one of our most important 横线 of food.
之前打字太急，不小心空错了，给大家造成不必要的麻烦真是对不住！

优质解答

milk is one of our most important kinds of food
复数 !