This book is t___but it's cheap.根据首字母,完成句子.

This book is t___but it's cheap.根据首字母,完成句子. Whose book is this? This is a book whose is this book? This book is yours Lily,is this book()? this is ( ) book. Is this a book? Yes,this is. This is s book.(a book提问) This is my book.This book is mine造句 this is my book. this book is mine 区别是什么? This book is ()(real) interesting 改错：is this book your? is ,an,book,english,this Whose is this book ?对吗? This book is about me. This is () useful story book.. is this her book?回答