this book is mine的复数形式是什么

this book is mine的复数形式是什么 This book is mine的同义句不是this is my book原题是：this book is mine（改为同义局） this book ( ）（ ）（ ） This is her book的复数形式 Is this a book?的复数句 whose is this book?请问它的回答到底是：this book is mine.还是：this is my book. This is my book.This book is mine造句 this is my book. this book is mine 区别是什么? This ie my book和this book is mine的区别 This book is new.复数 This dress is mine改复数句 This coat is mine.(复数句式) this book is mine.为什么是mine不是my. this i book is minethis( i ）book is mine this book is mine book.哪里错了?怎么改? Is this a book?的复数形式是什么?3Q This book is my book This book is mine 两句都对吗? This is a book 改为复数句 this is a book改为复数形式