1.This is my book.2.This book is mine.其中句中,谁是

1.This is my book.2.This book is mine.其中句中,谁是 this book is mine. 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 mine的同义句 this i book is mine This book is my book This book is mine 两句都对吗? 1.This is my book. [-C37] This book _____ .Mine is on my desk. 同义句转换This is my book. This is my book改为同义句 This ie my book和this book is mine的区别