It was a very old book.
They turned the pages : Who are the main characters in this story? Look back three sentences and you will find your answer.
Gee," said Tommy, "what a waste. When you're through with the book, you just throw it away, I guess. Our television screen must have had a million books on it and it's good for plenty more. I wouldn't throw it away. I really think you ought to be able to work this one out for yourself! Who is Tommy talking to? What is he talking about? Who apart from Tommy is in the house?