My backpack is behind the chair.对behind the chair提问

It is my backpack _your backpack Where is my backpack?下半句是什么? This is my backpack.改成复数形式 Not ,is ,my,it,backpack(連詞成句) This is my backpack改为同义句 it is my backpack(改为否定句) it（ ）my backpack. My backpack is under my chair.（改为一般疑问句） my backpack is behind the chair同义句The backpack ______ ______ ______ is _______一空一词 Is that___ backpack?No,my backpack is here.A.she B.hers C.your (改为一般疑问句)my pen is in the backpack.(对in the backpack提问） She is her aunt.变成复数形式Those are my backpack,backpack用不用加s 3.My backpack is under the bed.(对划线部分提问) ________ _______ backpack? My dictionary is in the backpack.变一般疑问句 ,my computer game is in the backpack.改为一般疑问句. My backpack is in the drawer改为一般疑问句 my backpack is green.该一般疑问句x not,is,my,it,backpack 连词成句 My english book is in the backpack 改否定句