It's this your pencil? -Yes,itis. It's that you book? -Yes,it is 错误 怎么改

Is this your book?( ),it's( ) Is this ball your?Yes,it's() is this your rulerAyes,it's Byes,this is Cno,it isn's Dno,it is This is a boy.改为一般疑问句That is my penci.改为一般疑问句.My name is Linda.改为否定句.It‘s an eraser in English.对划线部分提问 划线部分是an eraser.not,English,this,dictionary,an,is(.)连词成句 is this your watchAyes,it's Byes,this is Cno,it isn't Dno,it is is this your pen?----yes,it's. 改错 Is this your chair?Yes,it's 改错 is this your car?yes it's改错 Is this your family photo?________________.It's mine. is this your book?no,it's 什么.（提示he) This is your house .It's ______.(they)词形转换 is this your bicycle,david?no,it's not _____.it's helen's. IS this your cup?NO,it's not mIS this your cup?NO,it's not m______? Is this your book?Yes,it is为什么是it is 而不能说it's is this your eraser? ( ).it's my sharpenis this your eraser? ( ).it's my sharpener.a.no,it isn't.b.yes,it is. Is （）your pen?No,（）isn't.it's（）pen A.this.this.hIs （）your pen?No,（）isn't.it's（）penA.this.this.hisB.this.it.hisC.this.it.myD.that.that.his 英语翻译：It,s this month.Your birthday is this month,too It's your book.与This is your book.的区别?