请问I think this is Tom's book.对Tom's book画线提问 __ __ __ you th

请问I think this is Tom's book.对Tom's book画线提问 __ __ __ you th 英语对划线部分提问：Tom's mother is (a teacher). __ __ Tom's mother __ this is (Tom's )book!对括号内提问 That is Tom's book.(对Tom's提问） That book is Tom's(对Tom's提问） Is this book __ you bought yesterday This is Tom' s ruler,画线部分为Tom' s ruler,对画线部分提问 This is Tom's bike.(对画线部分提问) 对括号提问The book(on the desk)is Tom's.（ ）（ ）is Tom's. The book on the floor is Tom's.对Tom's提问. That is Tom's book.(对Tom's提）? this is a book of tom 还是tom‘s