The four sentences to the headmaster are concise and incisive.

1. Thank the headmaster for his hard work and selfless dedication to the school.

Thanks to the headmaster for leading the school team and providing us with a good learning environment and development opportunities.

3. Thanks to the wisdom and leadership of the headmaster, so that the school can make continuous progress and development.

4. Thank the headmaster for his firm determination and decisive decision in school management.

5. Thank the headmaster for always paying attention to the growth and development of students and giving us encouragement and guidance.

6. Thank the headmaster for his concern and support, which made us feel warm and caring in our study and life.

7. Thank the headmaster for his hard work and dedication, which created a harmonious learning atmosphere for us.

8. Thanks to the headmaster for his courage and determination, promoting school reform and innovation, and providing us with better educational resources.

9. Thank the headmaster for giving us encouragement and support in difficult times, and let us go forward bravely.

10. Thank the headmaster for his exemplary role and teaching us how to be an excellent person.

1 1. Thanks to the headmaster for his educational wisdom and ideas, which guided us to grow up.

12. Thanks to the headmaster for training and encouraging teachers to better educate us.

13. Thank the headmaster for his planning and planning for the development of the school, so that we can have better learning conditions and opportunities.

14. Thanks to the headmaster for shaping and inheriting the school culture and giving us a unique learning atmosphere.

15. Thanks to the leadership and guidance of the headmaster, we have won many honors and achievements in our school.