Dear
I have to thank you and your family who support my business in teaching and taking good care of my son.
He get a lot of learning not only Hoist, Chinese and experience with good culture from you and your family.
I realize that during the past month you might have some worries and difficulty to manage him to be a good trainee there, since you are the best host which make everything be well.
Please except my apologize for all difficulty you got and please except my sincerely thanks for your support.
Please let Mr. and Mrs. Pan know know I thank for his support not only in business and well establish relationship.
Best Regards,