We would like to express my deep and sincere gratitude to my English teacher, Mrs. Atchara Bachmann, at Kanaratbumrung Pathumthani School, for her detailed, valuable advice, friendly help, kind support and guidance have been of great value in this work.
We wish to express my warm and sincere thanks to, KP.Students, who helped us to answer the questionnaires and cooperate with us for this survey.
We also wish to thank our parents for their loving support. Our loving thanks are due to everybody who helps us to finish this work.