This is the new book from which I’ve learned a lot of knowledge on space.from which为什么不能改为where

This book is new.复数 This is a book ( )and book is new A.an B.a C.the D./ This is a book and book is new.An .A .The ./ this is the new this is --(new)book of all 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 _ _ _. my book is new but this is never than this book（ ）new This is a new book的疑问句和回答 Is this your new book? Let me ( )a look This kind of book is written to .A.old B.new C.the old D.young.选哪个 this is his the best book改错 This book is talking about the w( ) This is the book+that定语从句 This book is famous all over the He is the a_______ of this book Whice book is yours ,Simon The new one is ________.