this is my eraser 怎么（改为复数） 急

是This eraser is mine还是This eraser is my? this is my eraser 怎么（改为复数） 急 This is my eraser. Is that_____(you) This is my eraser 改为一般疑问句. this is my eraser.改成否定句 this is my eraser.改为同义词this is . Is this your eraser怎么回答 This is my eraser 改成否定句 ——my eraser . This is（）（he）eraser.It’s not my eraser. This is his pencil case改为一般否定句 This is my eraser 改为否定句 This is his pencil case改为一般否定句 This is my eraser 改为否定句 I guess this is eraser. this is eraser的意思 is this your eraser?no,it is not,it is（ ）,填空,me,my,her,hers, This it is an eraser.这个句子该用在哪,怎么用?为什么不用This ls an eraser. My brother does well in Maths.改为一般疑问句 This is my eraser.改为否定句 is this your eraser? ( ).it's my sharpenis this your eraser? ( ).it's my sharpener.a.no,it isn't.b.yes,it is. This is ( )eraser. ( )eraser is in the pencil case .