... Vietnam War, Russian was used as the main language and it was taught as compulsory subject in schools and universities. Since 90s, English has replaced Russian as the main language almost ... claims that there are two main ways to make it possible to make a language “global language . The first way is official way, that is, a language can be chosen to be used as “first language ... that easy grammar structures, familiarity in vocabulary, and the rich in culture. etc. make a “global language and language can exit independently. However, the said reasons above only cannot...