Question

【题目】— (who) eraser is that?
—It's (Amy) eraser.

Answer 1

【答案】Whose；Amy's
【解析】句意：—那是谁的橡皮？—它是Amy的橡皮。问句中eraser前面需要“谁的”修饰，答语中名词 eraser前面需要名词格Amy's修饰。所以答案是Whose，Amy's。