It is can not to denied that English is the international medium of
communication in the fields of science, technology, culture, education,
economy and so on. It is also considered a means to promote mutual
understanding and cooperation between Vietnam and other countries. It is
widely seen as the key language toll in the integrating process in the world.
With the rapid development and expansion of informatics technologies, there
needs to be a common language for people of all countries to exchange
information with each other and it is English that is used as a means of
international communication. Therefore, there has been an explosion in the
need of teaching and learning English all over the world.