英语翻译你和家人去上海旅游,受到了朋友Mary的热情接待,她带你们游览了上海的主要景点,请根据以下要求给Mary写封信：

Dear Mary,
Thank you for your treatment of leading us around Shanghai.My family were very happy with what you did for us and ask me to thank you.
I have difficulty with my English writing and I really want to improve my English writing level.I will very appreciate you if you can help me with my English.
The last thing is that our family are looking foward to your visiting here and we'll treat you with our best!
Yours,
Jane.