完整原文
Dear Mr. Wang, I am writing to express my sincere thanks for your careful guidance throughout my middle school years. First, your clear explanations and patient answers to our questions not only helped us understand difficult knowledge but also improved our exam scores. In addition, when I felt stressed before exams, you always encouraged me to stay calm and shared practical study strategies with me. Therefore, I truly appreciate all your efforts, and I will keep working hard to achieve my goals and make you proud. I wish you good health, happiness, and great success in your teaching career.