Two years ago ,Sally was in a high school.Today,she studies in collage在这个句子里a high为什么要加a

问题描述:

Two years ago ,Sally was in a high school.Today,she studies in collage在这个句子里a high为什么要加a
不加可不可以

high school是"高中"的意思.high是修饰school的,high school前面当然要加冠词a