回复：父母移民要求补充材料

the petitioner/sponsor submitted a form I-864ez affidavit of support which was signed more than one year prior to the filing of Form I-485.

*****mit a completed Form I-864 ,which has been signed within one year of the filing of the Form I-485

这个什么意思, 我不是很明白.请大家帮忙.谢谢

-That means you signed the I-864EZ and then, one year later you filed the I-485 and the I-864EZ and thus, the I-864EZ was out of date. I think you might have signed the wrong date in the form (e.g. you were supposed to date "1/12/2011", but you dated it as "1/12/2010").

Now you need to complete a new I-864 or I-864EZ, sign and date it and provide the support document together for response to the RFE.