英语作文写信的片尾部分通常包括对收信人的祝福、感谢或期待回复的话语，以及写信人的签名。以下是几种常见的结尾格式和表达方式：

结束语

Best wishes

Yours sincerely

Sincerely yours

Warm regards

With anticipation

Kind regards

See you soon

Talk to you later

Have a good day

期待回复

Looking forward to your early reply

Hoping to hear from you soon

I am looking forward to your next letter soon

Please write to me when you have time

Let’s keep in touch

感谢与祝福

Thank you for your letter

Thank you for your time and consideration

I really enjoy conversing with you, and it will be fun to talk more often

Take care and good luck

其他

Confidently yours

Your truly

Best wishes, [Your Name]

在撰写片尾时，可以根据具体情况选择合适的结束语和表达方式，确保语气礼貌、真诚，并且符合信件的正式程度。如果是手写信件，签名必须是手写的；如果是打印的信件，签名可以是打印的。最后，确保在结束语下方留出一至两行空白，以便收信人填写回信地址或其他信息。