First of all, I would like to express my deepest thanks to my supervisor-the Dean of the Foreign Language Department, Mrs Tran Thi Ngoc Lien,
M.A who has lectures and instructions which help me a lot in completing this
study.
At this stage of research accomplishment, I would like hereby to extend my
profound gratitude to my supervisor Mrs Nguyen Thi Thuy Thu, MA from
whom I have received enormous kindness and guidance.
Also, I am very grateful to all the teachers at the Foreign Language English
Department and Modern Languages, Hai Phong Private University for their
interesting and useful lectures which have built in me a firm foundation with
immense ideas for my fulfillment of this paper.