Dear Mr./Mrs xxxx

I have been back to my home town.

Thank you very much for your hospitality when I was in Pairs. I like Paris 'cause it impressed me a lot. And also I have learned a lot by visiting the Factories and Schools.

Hope to see again next time.

Yours xxxx

亲爱的XXXX：

我已经回到家乡。

非常感谢我在巴黎时您的好客，我喜欢巴黎，他给我留下了很深的印象。另外通过参观工厂和学校，我也学到了很多东西。

期待下次与您再次见面

你的XXXX