把That isn't my CD.改为复数句

把That isn't my CD.改为复数句 That isn't my backpack改为复数 That isn't my CD 改成复数形式 初一英语句型转换单数句改为复数句That is an eraser.This isn't my friend.She i that isn't a watch改为复数形式? this isn t my grandparent改为复数形式 That isn't my pencil case.变为复数 That is my dictionary 改为复数句 that is my eraser 改为复数句 that s my brother改为复数句 1.This is my sister.改为复数句2.That is my friend.改为复数句 That is not my CD的复数句