We are in different class有错么?

We are in different class有错么? They are in the different class 哪里有错? We are in different classes .还是we are in the different class Sam and I are in different class.这句话哪里有错? we are not in the same class.we are not in the different cls we are in the same class,but in different grades为什么可以省略but后的 “We are in class.We like ( )class.” We are in different classes They are in different class 改错 We are in different grades.同义词转换 We are.in He are in Class One.这句话哪里有错? T____ we are twins ,we are different in many ways.