9 класс Афанасьева, английский язык. Шаг 1, упр. 5. Переделать в страдательный залог. ГДЗ

In the 1970s TV technologies were developped. Nowadays a lot of TV and Radio programmers are devoted to politics. In the future new TV stations will be built in Russia. The BBC was founded in the nineteen twenties. The Internet can be used in many ways. The BBC are knowen as the best non-commerciaal television and radio system. More and more people will be taught with the help of television and the Internet in future. The modern idea of radio is developped by many individuals - investors, engineers, businessmen of the previus centuries. A global system of interconnected computer networks are called the Internet.
 
Наверно, как-то так. Не уверен, давно это было))