... teachers in Foreign Language Departement, especially Mrs Van Huong, Mr Tran Ngoc Tuong, Mrs Kim Anh who provided me with many references. Last but not least, my sincere thank and gratefulness ... encouragement have contributed to the completeness of this thesis. Vinh, May15, 2007 Nguyen Thi Kim Oanh.Chapter 3: Application3.1. Language used in business letters in term of speech acts. In order...