回複：I-864問題：配偶申請綠卡，家庭收入主要來自被擔保方的收入。

I-864有這麽個要求：
Evidence that his or her income will continue from the current source after obtaining lawful permanent resident status must be provided

請問出具什麽材料可以滿足這個要求？
-The employment verification letter from the employer is OK.