It is my backpack _your backpack

It is my backpack _your backpack Not ,is ,my,it,backpack(連詞成句) it is my backpack(改为否定句) it（ ）my backpack. Is ____ your backpack No,it isn't .My backpack is big.That o Is that your backpack?Yes,it's ___ backpack.A his B her C my It's my backpack.对my backpack提问 It is in the backpack? not、 is、 his、 backpack、 it not,is,my,it,backpack 连词成句 It's my backpack.改成一般疑问句 It's my backpack.改为复数形式 This is my backpack改为同义句