this is my eraser.(改为一般疑问句) Is it a pencil?(做肯定回答)this is my dictionary.(改为否定句形式)It's a pencil.(对a pencil提问）my teiephone number is 5554327.（对号码提问）( )It’s a sharpener.（根据回答写问

是This eraser is mine还是This eraser is my? this is an eraser 改复数 This is my eraser. Is that_____(you) It is my eraser.改否定句 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 . This is my eraser 改成否定句 ——my eraser . this is my eraser 怎么（改为复数） 急 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 is yellow eraser｛改为一般疑问句｝啥意思?咋改 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.