Nowadays, English has become the most widely used language all over the
world. It is considered as the medium of communication in many different fields
such as: science, technology, aviation, international sport, diplomacy, and so on .
English is used as the working language of the Asian Trade group ASEAN and the
official language of the European Bank. In fact, with the spread of globalization
and the rapid expansion of information and technology, there has been an
explosion in the demand for English worldwide .
In Vietnam, in recent years, the study of English has been gaining
momentum firstly because it is an international language and secondly because it is
also seen as a mean to promote mutual understanding and cooperation between
Vietnam and other countries. English is most widely taught at schools and
universities. In learning English, learners have a lot of difficulties in vocabulary,
pronunciation and so on especially grammar . Like all other languages, English
grammar has a number of parts of speech including personal pronouns . Personal
pronouns are known to be one of the first and easiest parts of speech taught in 1
st
English lesson. However, the fact shows that while learning English, especially
Vietnamese, Vietnamese students and foreign ones have great difficulties in using
and translating personal pronouns .