写作:write a letter to express your thanks to one of your school teachers upon entering college. Part Ⅰ Writing(2016年6月英语四级卷2真题及答案) Directions: 1.For this part, you are allowed 30 minutes to write a letter to express your thanks to one of your school teachers upon entering college. You should write at least 120 words but no more than 180 words.