in the same class为什么要加“the”?

in the same class为什么要加“the”? 为什么We 're look the same class.same的前面要加the,而不是a not in the same class什么意思? They are in the same class.变形 Tom and I [] in the same class. Jack and ---- are in the same class in the same class中文意思. we are in the same class. Are they in the same class Who jumps(highest)in your class?为什么不加the highest?最高级要加the呀! are thy same in class grade row the same the and same the 连词 we are in the same class,but in different grades为什么可以省略but后的