Which book is Tom's?这句话对吗?

She is Mary and Tom’s sister.这句话对吗? Whose is this book?这句话对吗? tom's book is bigger than your.这句话哪里错了? Is it your book? it's your . 回答这句话对吗 The book on the table is Tony's这句话对吗? Here is where you put the book.这句话对吗? How interesting enough book this is!这句话对吗? The book price is high这句话对吗?为什么? 这句话可以这么写吗?原句是 Where is the book from which you quoted this s Which is it middle school?这句话对吗?啥意思? Which T_shirt is your T-shirt?这句话对吗? This is Tom and Jack.这句话对吗?