is this eraser?回答 回答意思

is this eraser?回答 回答意思 Is this your eraser怎么回答 Is this an eraser 怎么回答?（选择题） this is eraser的意思 ls this your eraser?做出否定回答 this is tom is eraser.变成一般疑问句并作否定回答 this is my eraser.(改为一般疑问句) Is it a pencil?(做肯定回答) is it eraser?做否定回答 Is that her eraser?作肯定回答 Is that an eraser?的回答 is that his eraser咋回答 this is your eraser变成一疑问句并作否定回答