好好看看 3903e 第9项:
PROOF OF RELATIONSHIP TO SPONSOR
If you are being sponsored by your spouse, common-law partner or conjugal partner, you must send evidence of the relationship between you and your sponsor such as wedding photos or photos of outings, letters between you and your sponsor (including postmarked envelopes), telephone bills showing contact between you and your sponsor. Note: Photos must be loose; do not send them in binders, albums, frames or other such containers. Do not send video discs or video cassettes. Do not send musical greeting cards or other similar documents containing electronic or mechanical devices.
Proof of your sponsor’s visits such as airline ticket coupons, boarding passes, photocopies of your sponsor's passport biodata pages and of pages showing entry/exit stamps.
不要递交 视频的 碟子和录像带。不要递交音乐贺卡或者其他类似的电子的或机械的设备。