用英文写邮件开头都能用什么问候语啊?尤其给长辈说?越多越好大概是最近怎样啊一些客套话，最近还好吗
问题描述：
用英文写邮件开头都能用什么问候语啊?尤其给长辈说?
越多越好
大概是最近怎样啊一些客套话，最近还好吗
答
Dear +收信人的名称。
答
Dear ??
how have you been doing? its been a long time since we've met up.
答
Dear ***:
How are you doing?
答
I am happy to write to you
I am missing you so much
I hope you happy to read this