1. English is an international Langauage
2) English is a window of the world.
English is the language of science, computers, diplomacy, and tourism. Knowing English increases your chances of getting a good job in a multinational company within your home country or of finding work abroad.
3.)Friendly Language
4. Scientific Langauage
In the various countiries the number of scientific papers written in English has started to outweigh the number of papers written in the native language of the researcher. In the Netherlands, for example,or this reason, having a knowledge of English is incredibly important to those working in the scientific field.
5. Language of the media:
English is the language of media because of the prominence of global media, and much of films, and popular songs are written in English. If you speak English, you won't need to rely on translations and subtitles anymore to enjoy your favourite news,films and TV shows. etc.