During the process of fulfilling this graduation paper, I have received
many necessary assistances, previous ideas and timely encouragement from
my teachers, family and friends.
First and foremost, I would like to send my deep gratitude to Miss.
Nguyen Thi Quynh Hoa, the supervisor of this graduation paper. Her detailed
comments and useful advice have helped me shape my ideas and realize my
aims. She has also provided me with many useful materials as well as
encouraged and created favorable conditions for me to fulfill this research.
Therefore, it is an undeniable fact that this paper would have not been
completed without her invaluable support.
Secondly, I would like to show my sincere thanks to Dr. Tran Thi Ngoc
Lien-The Dean of Hai Phong Private University and leading Board of
Department of Foreign Language for giving me a chance to do the thesis.
Also, I would like to express my particular thanks to all the lectures of the
Department whose lectures have enriched my academic knowledge of English
during the past four years.