This is her book怎么改为否定句

This is her book怎么改为否定句 is this her book?回答 This book ia not ( )给你her,Is this book( )给你your 怎么做 IS that her book. 改为否定句 Is this her key?怎么改为复数形式? This is her book的复数形式 This book is more expensive than any other book.改为同义句,应该怎么改,急, This is a book 改为复数句 this is an interesting book改为感叹句 this is a book改为复数形式 This book is interesting.（改为感叹句） this is my book.改为一般疑问句. This is my book改为同义句 this is interesting book改为同义句 this book is boring[改为一般疑问句} This book is big .(改为同义句) this book is hers.her为啥加s,this is her book .这又是怎么回事 this book is hers.her为啥加s,this is her book .这又是怎么回事