网上找了一下，都是乱七八糟的

To whom it may concern: This is written in regards to my observation that 你的名字 and 丈夫名字have lived together as husband and wife during their marriage. I have spent time in their household every two weeks or so since right after你的名字and 丈夫名字were married. We have spent time together on a regular basis more or less as friends. To the best o my knowledge they seem to operate as a very happy family. 你的名字and丈夫名字appear to be very devoted to one another, which is evident each time that I visit their home. Their home environment is very comfortable and relaxes with the happiness within showing outward in each member of the family. If you have any questions or comments please feel free to contact me at the following information: Address: 123 Fake St. Fake Town, Fake 12345 Tel: 123-456-7890 Place of Birth: Fake, USA

5. Af davits sworn to or af rmed by at least two people who have known both of you since your conditional residence was granted and have personal knowledge of your marriage and relationship. (Such persons may be required to testify before an immigration of cer as to the information contained in the af davit.) The original af davit must be submitted and also contain the following information regarding the person making the af davit: his or her full name and address; date and place of birth; relationship to you or your spouse, if any; and full information and complete details explaining how the person acquired his or her knowledge. Af davits must be supported by other types of evidence listed above.

我给别人写过，就是写写你和他们怎么认识的，为什么认为他们的婚姻是真实的，blabla，我朋友有小孩所以比较好写，rfe是因为两地分居。