those are cakes单数形式【 】【 】【 】cake

those are cakes单数形式【 】【 】【 】cake These are cakes 改为单数形式 Are those oranges?单数形式 Are those his friends?改为单数形式 Those are blue pens的单数形式 Those are erasers 改为单数形式 Those are rulers 改为单数形式 快 Those are oranges 改为单数形式 Those are her photos改为单数形式~ Those are gloves改为单数形式 those are her cousins （改为单数形式) are those japanese cars?改为单数形式 those are old daesks变单数形式 those的单数形式 those are his brothers 改为单数形式 什么 his 什么 Those are apples.谁会改（改为单数形式） 怎么把Are those your keys改为单数形式? Those photos are on the wall.改为单数形式