English is the international language for communication in science, business and mass media.
1) Is English the international language for communication in science, business and mass media? (общий вопрос)
2) English is the international language for communication in science, business and mass media, isn't it? (разделительный)
3) Is English or German the international language for communication in science, business and mass media? (альтернативный)
4) What kind of language is English? (специальный)