我为他写了一封很好的推荐信。用英语怎么说？

我为他写了一封很好的推荐信。

I wrote him a good recommendation.

wrote

v. 写( write的过去式 )，写信；

例句
Richard Brome, an acolyte of Ben Jonson's, wrote 'The Jovial Crew' in 1641...
本·琼森的仆人理查德·布罗姆在1641年写了《一伙快活人》。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

good

adj. 好的，优秀的，有益的，漂亮的，健全的；n. 好处，利益，善良，善行，好人；adv. 同well；

例句
This recipe makes a good accompaniment to ice-cream.
这道食谱适合搭配冰激凌。

recommendation

n. 推荐，推荐信，建议，可取之处；

例句
Arthur wants to put his recommendation before the board at a meeting tomorrow.
阿瑟希望在明天的会议上把自己的建议书提交董事会。