Guide the students in class 12 A1, 12A2 at Quan Son high school to distinguish the language functions and responses exercises effectively 1 Table of content Part Content Page I Reasons for choosing the research 2 II Aims of the research 2,3 III The researched subjects 3 Part A Introduction IV Method of the study 3 I Theorical foundation of this research 4 II The current situation of the issue 4,5 III The solutions to solve the matter 5 19 1 General tips 6 8 2 Language Functions and Responses 8 1[.]