I have an eraser 对an eraser提问

I have an eraser 对an eraser提问 Thay's an eraser in English.(对 an eraser 提问) This is an eraser 对an eraser 提问 I have an eraser改为特殊疑问句 I have an eraser同义句 i have an eraser.改为否定句 there is an eraser on the desk 对划线句提问 an eraser 划线 an eraser 还是 a eraser that is( an eraser) in english.对括号内提问. I have an eraser in my hand.改为同意句 I have an new eraser.哪里错了 Many I have an eraser?的同义句