Pham Van Dong University Foreign Languages Department THE SUMMARY OF GRADUATION THESIS Theme: An investigation of common errors made by high school students in writing Cause and Effect English essay and suggestions for solutions Field: Student’s Name Class Supervisor's Name : English Pedagogy : Nguyen Hoang Anh Quyen : DSA16B : M.A Truong Hoang Lan Quang Ngai, 29th June, 2020