That is my game.(复数句)

That is my game.(复数句) That is my dictionary 改为复数句 that is my eraser 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 my sister.(改为复数句） 1.That is my brother.(变为复数句) That is my knife.改复数句怎么做? That is my watch.（改为复数句） That is not my CD的复数句 我英语卷子 That is my pencil 改为复数句 This is her brother改为复数句 Is th 变复数句1.This is my booy2.Is that his uncle3.Is she your friend This is his ruler(改为复数句) That is my key(改为复数句) These are his