From the bottom of my heart, I would like to show my deepest
gratitude to many people helping and encouraging me enthusiastically in
preparing and completing the graduation paper.
First of all, I would like to express my heart felt thanks to Mrs. Nguyen
Thi Phi Nga (MA) – my supervisor and Mr Vo Van Thuong – my teacher who
has given me many valuable guidance, precious advice and cautious
correction which help me much in completing this paper.
Also, I would like to thank Ms. Tran Thi Ngoc Lien – Dean of Foreign
Language Department for her help during my completion of the paper.
Next, I am also grateful to all teachers at Hai Phong Private University
whose support and advices has improved my study.
Last but not least, I own sincere thanks to all members of my family
and friends for whatever they supported and encouraged me both mentally
and physically in the progress of writing this graduation paper.