that's an eraser改为复数句

that's an eraser改为复数句 that's my eraser 改为复数句子是什么 It is an orange eraser.改为复数 that is my eraser 改为复数句 It's an eraser.改成复数句 There's an eraser on the desk.改为复数形式该怎么写?//xiexie 把Is it an eraser改为复数形式 15.That’s an apple.（改为复数句） apples. That's an English book.(改为复数形式) That's an egg in the box改为复数形式 that is cina,s eraser(改为一般疑问句） That s my eraser改为否定句是什么 It‘s an eraser. what's that 改为复数 That's my eraser改为疑问句my eraser下加下划线,对此提问 句型转换改为复数this is an eraser.what's this in English?He is my feiend.I an a teacher.Are you a boy?IS it ab apple.Thank you.（作答）改为复数形式 This is an eraser That is aThis is an eraserThat is a plate变复数句 there is an eraser on the desk.[改为发复数句]