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Dear Mr. Tan,

Thank you very much for your continuous support and help. Every time when I feel distressed, it's you who cheers me up and makes me strong enough to face all the difficulties. In the past ten years, I've been working hard to be a good teacher. My teaching skills has being improved, and I am elected as "the oustanding teacher" in our city. Please accept my sincere thanks.

Faithfully yours,
Sandy

Dear Mr Tan,
Thank you very much for your patient and helpful instruction. Every time when I was distressed, it's you who ensured me to pick up the courage to overcome all the difficulties in the past ter years. Now I've been working hard to make a good teacher and develope my teaching skills. I was elected as "the outstanding teacher" in our city. Please accept my sincere thanks.

Dear Mr Tan,

Thank you very much for your patient and helpful instruction. Every time when I was distresse