this is my eraser 怎么（改为复数） 急

this is my eraser 怎么（改为复数） 急 Is this her eraser?(改为复数句） that is my eraser 改为复数句 This is my eraser 改为一般疑问句 Is this your eraser?(同义句转换） Whose is this bag?(改为复数句） 句型转换改为复数this is an eraser.what's this in English?He is my fe this is my eraser.改为同义词this is . This is my brother.(改为复数） 初一英语句型转换单数句改为复数句That is an eraser.This isn't my friend.She i This is my shirt.改为复数句怎么改 that is my red eraser.----- eraser----- ------.改为同义句 2.this This is his pencil case改为一般否定句 This is my eraser 改为否定句