-Authors: Ths. Nguyễn Vân Khánh (2014)
The present study is a comparative and exploratory study of the politeness phenomena in English and Vietnamese through using Imperative Mood within Thang Long University Educational Environment. The data were collected through a modified version of a
discourse completion task questionnaire (DCT) developed by Beebe et al (1990). There were two questionnaires to collect data for this study. The results show that English native speakers use Interrogative mood instead of Imperative Mood to make polite requests in most situations whereas Vietnamese native speakers use both Imperative Mood and Interrogative Mood equally and Vietnamese people consider Imperatives with internal modification ... 
