How to write a short thank-you letter at the end of the training?

A short thank-you letter at the end of the training:

1, teacher, if I can fight the blue sky, you gave me wings to soar; If I am a warrior who breaks the waves, you give me the power to make waves!

2, three feet podium, dyed gray hair, peaches and plums full of gardens, revealing a beautiful smile. Praise you, dear teacher, bless you, dear teacher!

3. Thank the teacher for his care and love for my children. The growth of children needs your care and help. I can't express my gratitude in words, but I keep it in mind! I wish the teacher a smooth job and good health! Tomorrow the children will be proud of your education!

4. Hello! Please accept the parents' thanks for your hard work and love for your students.

5. You are a magical beach. Let me pick up those beautiful shells in the world. Happy Teachers' Day!