This isn't my dictionary变成复数形式怎么改?七年级的英语!

This isn't my brother 变复数形式 this isn t my grandparent改为复数形式 This isn’t my bike.（）I is over there This isn't my shirt.It's_________(you) This isn't my notebook.变为一般疑问句 this just isn't —where is my id card? i don’t know.please a ___jim.—is this your key?(改为同义句）is this key____?—ann,you must_______（ask）your mother for it（用括号里的单词的适当形式填空）—mum,where______（be）my cd and dictio This isn't my pencil box.-----is red.A.My B.Mine C.Her D.his This isn't my MP4 player.__ is at my uncle's. This isn't my bag.M__ is a yellow one.那个M__ 是要填My 还是Mine? my uncle has a brother but this man isn't my unclehe is... This isn't my MP4 player.__ is at my uncle's.填MINE为什么 This isn't my trumpet. ______(my) is next to the chair.适当形式、、 this is not my ... 和 it isn‘t my ... 有什么区别么? It isn't my pencilcase,but this is my backpack是什么意思? This isn't just the This isn't my mother(变肯定句)This isn't my mother(变肯定句) This is my mother (变一般疑问句This isn't my grangdfather (变肯定句)This is my father (变为否定句They are my parents(变一般疑问句This is my brother (变否定Th This isn't my mother(变肯定句) This is my mother (变一般疑问句This isn't my grangdfather (变肯定句)This is my father (变为否定句They are my parents(变一般疑问句This is my brother (变否定This isn't my sister (变肯定句Th