Thant' s my eraser改为否定句

Thant' s my eraser改为否定句 That's my eraser改为疑问句my eraser下加下划线,对此提问 that's my eraser 改为复数句子是什么 That s my eraser改为否定句是什么 That's my eraser.(改为否定句）可以这样写吗:That isn't my eraser.如果不行,为什么? that's my cousin's eraser改为一般疑问句并作否定回答 This is my eraser 改为一般疑问句. that is my eraser 改为复数句 that's an eraser改为复数句 It's her ruler(改为一般疑问句) That's my eraser(改为否定句) 英汉互译：在失物招领箱里.快、5分钟内 It is my red eraser(改为同义词)＿＿eraser＿＿ this is my eraser.改为同义词this is . my eraser is in the pencil box.(改为一般疑问句) It is my red eraser 改为同义词_____eraser______ _______ my eraser is in the pencil case改为疑问句 this is my eraser 怎么（改为复数） 急 that is my red eraser改为两种同义句 It is my red eraser.(改为同义句)_____eraser_____ ____.