is this book red?回答怎么说

回答it's green
that's green
还是this's green

Whose book is this?答案 this book is sold well 还是this book sells well This book is above me. 句型是怎么回事 is this book red?回答怎么说 this old book is one of their best sellers is this book ( ) they want to borrow from liberary? this book is a little different -----that one Where is the book from which you quoted this sentence? This ____ not be my book. Mine is rather old. ---Is this your new book? ---______.Thank you.