在撰写关于朋友的英语作文时，结尾部分应该简洁而有力，总结全文并表达情感。以下是一个示例：

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Conclusion

In conclusion, my friend is not just an ordinary person； he/she is an exceptional individual who has a profound impact on my life. His/her kindness, intelligence, and unwavering support have made our friendship truly special. I cherish every moment we spend together and look forward to many more years of shared experiences and laughter. Thank you for being such an integral part of my life, my dear friend.

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这个结尾总结了全文，表达了对朋友的感激之情，并强调了友谊的珍贵。你可以根据具体情境和写作目的进行适当调整。