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What about radio? It`s worth reminding ourselves that most of the world has never made a telephone call, let alone used a computer and the Internet.Listeners can listen to all kinds of stations: pop or classical music, news, sport or radio talk shows. While listening to a radio talk show you can call in and ask any question. But you should be ready to give your own opinion if the talk show host or his guests ask you to.
это на мой взгляд самое главное, не знаю успею ли сделать перевод, но постараюсь.