就像开头“好久没联系了，你还好吧” “收到您的来信很高兴”“谢谢您的来信”之类的话该怎么用英文说。一开始说Hi好么？
有没有什么套话之类的。
还有结尾问候。
回答的朋友最好帮我把引号里的话翻译一下，谢谢。

“好久没联系了，你还好吧"
We haven't been in touch with each other for a long time.How is everything going with you?

“收到您的来信很高兴”
Glad to have received your letter.

“谢谢您的来信”
Thank you very much for writing to me.

信的开头尽量不要用hi
还是Dear ...,比较好，比较稳妥

结束语,一般用Yours truly/Yours respecfully/Yours faithfully/Yours sincerely

开头句式：
I am writing to inform you that...
I am writing to see if
I am writing to apologize for...
I am writing to say sorry for ...
I would like to convey in this letter my hearfelt thanks to you for...
You have asked me for my advice with regard to ...and I will try to make some conductive suggestions.
I am writing to express my interest in your recently advertised position for a waitress...
I am writing to invite you to
I wonder if you could come
结尾的客套话：
I would like to have this matter settled by the end of ...
Your prompt attention to this letter would be highly appreciated.
I am looking forward to hearing from you.
I would like to thank you for your generous help in this matter.
I would be ready to discuss this matter to further details.
I must thank you again for your generous help.
If you need to know more about me, please contact me at...
We would be looking forward to your participation in the party.
I really hope you can make it.