IS this his book?改为复数句 This is my pencil.改为同义句

IS this his book?改为复数句 This is my pencil.改为同义句 This is my book,and that is his book(改为复数句） That book is his?改为复数形式 It is his book.改为否定句. this is his the best book改错 this book is his是答句求问句 This book of his is the same as yours请问句子里的“his”是否该改为“he”? 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) He got his book this Sunday.(改为否定句)I _____ _____ his book this Sunday. This book is his,that book is____(I)