English English has almost become an international language. Except for Chinese. more people speak it than any other language. spanish is the official language of more countries in the world, but more countries have it as their official or unofficial second language. more than 70 percent of the world's mail is written in it. it is the primary language on the Internet. in international business, it is used more than any other language, and it is the language of airline pilots and air traffic controllers all over the world. Moreover although French used to be the language of diplomacy, it has displaced it throughout the world. therefore, unless you plan to spend your life alone on a desert island in the middle of the Pacific Ocean, it is a useful language to know