We are in different classes这里的class为什么用复数?

T____ we are twins ,we are different in many ways. We are in different classes .还是we are in the different classes Though we are Twins ,we have different t(. ) in clothes we are different是什么意思? We are in different classes 同义句转换 We are in different schools.(同义句转换) [are we in schools different ]{连词成句} we are in different class?对划线部分提问? We are in different classes.(改为同义句)We are not in ______ ______ ______. we are not in the same grade,______ of course we are in different classes we are not in the same class.we are not in the different clsses.class We are in different grades.同义词转换 We are.inWe are in different grades.同义词转换 We are.in...same grades. we are in ______class. a:the different b:the same c:different d:same we are in different grades .用same 改写）We are __in ____same___ . We are friends.We are in different age.请问age 是用复数还是单数呢? We are all different ages We are different world people We are in different school.（同义句） We .in ..school.we 填单词 in 填单词 填单词 school