It's your book与This's your book.

It's your book与This's your book. Is this your book?( ),it's( ) It's your book.与This is your book.的区别? is this your book?no,it's 什么.（提示he) That's my book.This's your book. Is this your book?与Is this book jim's?区别 It's this your pencil? -Yes,itis. It's that you book? -Yes,i how's your book going Where's your English book? Is it your book Yes,it is .与 Yes,it's mine.回答的区别? —Is this your book?-no,it 's not my _____ that's my book.this's your book.有没有语病