In the process of completing this graduation paper, I have received a
great deal of help, guidance and encouragement from my teachers and
friends.
I would like to express my thanks to my supervisor, Mrs. Dao Thi Lan
Huong, M.A and my teachers in Foreign Language Department of Hai Phong
Private University for helping me through this challenging process.
I would also like to express my sincere thanks to all teachers of Foreign
Language Department for their supportive lectures during four years that
provide me with good background to complete my graduation paper.