We are in different classes .还是we are in the different class

We are in different classes .还是we are in the different class We are in different classes We are in different class有错么? we are not in the same class.we are not in the different cls We are in different classes.(改为同义句) We are in different classes 同义句转换 We are in different classes 改为否定句和 we are in the same class,but in different grades为什么可以省略but后的 We are in different grades.同义词转换 We are.in T____ we are twins ,we are different in many ways. We are friends.We are in different age. We are at the same school but we are in the different classe