Nowadays, English has been spoken all over the world as an
international language. No one can deny that English plays an important role
in social life. It is widely used in every field of life such as science,
technology, foreign trade, tourism, business, education and so on. In Vietnam,
it is now a great demand to learn English for the process of integrating into
regional and international economic and diplomatic development. Moreover,
English enables us to communicate with people from different countries and
understand more about their tradition and culture. However, it is not easy to
learn English as the second language for Vietnamese because there are a lot of
differences between two languages and grammar is the typical problem for this.