English in any situation with Grammar

The book has been translated into Serbian, but it can be used by every Citizens from Balkan countries, like Croatian, Bosnian, Montenegrin and another Slovenian people for learning first world Language, because people use English for conversation. It's very simple and easy to learn English today, everybody can speak this first world Language. English Grammar is very simple,and can be learnt through different Learning methods. The Time is not so important for Learning,when there is good explanations in the book, which people can use by choosing Learning English every time. English Grammar is also easy to learn,especially when you have good books with simple explanation very important. Talking or writhing with another people worldwide brings good results as well.