我的485 当时是律师带签的字，RFE 中有一项要求提供：
Proof of physical presence in the United States on the date 485 was filed. 具体是这样写的：
Since it appears that you may not have been available or able to sign your application, xx and xx, it raises concern whether you were present in the US when your I485 application was filed. Therefore, please submit evidence that you were physically present in the US on xxxx.
律师说最好能有当天的信用卡purchase记录，可是那天是星期三，正好没有用过信用卡，那还有什么办法能证明我当天在美国吗？
另外，我从网上看到我和ld都被RFE了，可是律师指给了我一张清单，那我需要单独证明那天我们都在美国吗？
我考了半天古，没看见这方面的信息，时间紧急，万分感谢大家的帮助！！