<p>
In the process of completing this graduation paper, I have received a great
deal of help, guidance, and encouragement from many teachers, friends and my
family. I have faced to many difficulties, but thank to your help, I overcame all
troubles and completed my graduation paper.
First of all, I would like to express my grateful thanks to Ms. Nguyen Thi
Quynh Hoa, M.A – my supervisor – for her constant and tireless support
throughout this study. During my studying process, she has willingly and
readily, suggested and given me valuable advice and detailed comments about
my study.
Furthermore, my sincere thanks also go to other teachers in foreign
language department for their teaching which helps me much in completing this
study. Especially, I am profoundly grateful to all the members in my family and
friends, who always beside me, supporting time to complete this study.
</p>
