my father died when i was a few months old

题目

my father died when i was a few months old
food 有复数么?
A healthy diet means eating different kinds of healthy foods each day.这句话里foods这样用可以吗?
If we protect the environment well,i believe we can make the world a better place to live.最后要加介词in么?

答案

这里的 foods 是可以用的 fodd 在一般情形下是不可数的.但是在句子里提到food表示食物“种类”（着重指‘不同种类的食物’）的时候,是可数的.例如：我喜欢不同的食物和水果.I like different kinds of foods and fru...