This book is new.复数
That book is new的复数句
this is --(new)book of all
Is this your book ? 变为复数句
Is this a book?的复数句
this is a book改为复数形式
Is this your book?单复数句互变
this is a new car.变复数
this book is new,在这里new担当什么语?
This is a book(改复数) _______ _______ book
this is a new book 其中的表语是book还是a new book
this book 复数
Is this your new book? Let me ( )a look