This book is new.复数

This book is new.复数 That book is new的复数句 This is a book 改为复数句 this is a book改为复数形式 This is her book的复数形式 Is this your book ? 变为复数句 Is this a book?的复数句 this is --(new)book of all this is a new car.变复数 this is a new book 其中的表语是book还是a new book This book is new.That book is new,too.=___this book ___ that are new.=This book and that book _ _ _. this book 复数 my book is new but this is never than this book（ ）new This book is in that box.（改为复数形式） How much is this English book?(改为复数形式） This is an Enlish book.(改为复数形式) 改成复数形式．4.This is a book.