Everyday people need to communicate with others via languages. The world has many languages including English language. English language has become the most popular in the world because it is recognized as language for the international community, and also it has become the official language of the business and scientific world (Supakaew, 2006). Schutz (2005) estimated that 75 percent of the world’s published media, 80 percent of all information in the world’s computers, and 90 percent of Internet content, are in English language. English is spoken by more than 300 million native speakers and between 400 and 800 million foreign users. Manivannan (2006) suggested that English is the official language of the world’s transportation, science and technology, commerce, education, and international negotiation. Thus, English language is affected to people’s daily life and communication because it covers all of people’s activities.