This is your book .You must _____A:look at it B:look after it

改错：is this book your? This is ( ) book.your|yours Is this your m( )book _____me,is this your book,Tom? Is this your book ? 变为复数句 Is this your book?的肯定回答 is this your book?(肯定回答) Is this your book 怎样回答 is this your book?的同义句 Is this your book 改成同义句 Is this your book?( ),it's( ) is this your book?聊英语 This book is ( )? 填Your还是Yours? this is [ ] [ i ] book.[ ] [ your ] is over there . This is your book.My is on the desk. is it your book 与is this your book 意思一样吗. This book ia not ( )给你her,Is this book( )给你your 怎么做 It's your book.与This is your book.的区别?