My brother does well in Maths.改为一般疑问句 This is my eraser.改为否定句

问题描述:

My brother does well in Maths.改为一般疑问句 This is my eraser.改为否定句

Does your brother do well in Maths?
This isn't my eraser.
希望我的回答能帮助到你O(∩_∩)O哈!有不懂的继续问我噢~