How are you getting along these days? I miyou very much.你近来过得如何?我十分想念你。
I was very happy to receive your letter of October 10th.我很高兴收到你10月10日的来信。
Thank you for writing to me.谢谢你给我写信。
Your letter came into my hand yesterday.我是昨天收到你的来信的。
It's a long time since I got your last letter.我收到你的信已经很长一段时间了。