Complete with the present simple active or passive of the verbs. Books of the past,present and future You want to buy

Books of the past, present and future. You want to buy book? Simple! Or is it? In the past you only bought books in bookshops. But today many books are sold in supermarkets and other shops. Lots of people buy books on the Internet and the books are sent to them by post. In fact many people do not read paper books any more. Lots of books are recorded and people listen to them on MP-3 players. And there are e-books which are downloaded onto computers and read or listened to by people on the bus or train.