This book is my brother's改为同一句

This is my book.This book is mine造句 this is my book. this book is mine 区别是什么? This is my book.对my提问 this is my English book对my English book提问 This is my book 变为一般疑问句 同义句转换This is my book. 改错题：This is a my book. This is my book用whose提问 this is my book=什么? this is my book.改为一般疑问句. This is my book改为同义句 My book this English is连词造句 L ------ ,this is my English book.填空 this book is my friend's对吗 OK,and this is my book. This is my book .对book提问如何做 This book is my book This book is mine 两句都对吗? this book is my own对吗this book is my own如果不对请说明改正