it is an eraser的复数形式!helpit is an eraserThis is my pencilIs that a photo of mineShe is our teacherIs this book on the desk

把Is it an eraser改为复数形式 It is an orange eraser.改为复数 it is an eraser的复数形式!helpit is an eraserThis is my pencilIs that a photo of mineShe is our teacherIs this book on the desk It is an eraser. It is an eraser? It is pen复数.和this is an eraser复数.还有he isboy复数 He has an eraser复数形式 What are those? (改成单数形式) These are my shoes.(改成单数形式) It is an eraser.(改成复数形式） It's an eraser.改成复数句 this is an eraser 改复数 this is an eraser 变复数.快 it is an old backpack的复数形式 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 eraser改成复数形式 IS SHE YOUR AUNT?的复数是什么还有,THIS IS AN ERASER的复数.HE^S MY FRSENG的复数, It is an eraser in English. It is an eraser .改为否定句 英语写负数形式的句子This is a ruler.Is that his book?It is an eraser.That is my brother.