It is ( ) useful book.

It is ( ) useful book. It is useful book （ ）useful book it is O_____ ,it is a useful book How useful a book it is! 英语：改为同意句How useful the book is!It is _____ _____ useful book It is ____ useful book.I borrowed it yesterday. what a useful book it This is () useful story book.. How a useful book it is!What tall building it is!What great How a useful book it is What tall building it is what great It is a useful book , I bought it in___ Xinhua Bookstore