從現在開始要再等3，4 天” ， 這個3，4天是怎麽來的呢？她已經訂了8月6號（星期二的票）。這個很重要嗎？是不是因為她離開美國時要交回她現在的i-94, 可能會影響移民局的i-485輸入係統？如果真是很重要的話，可以讓她改機票到星期五。。。
-The applicant has to be physically present in US to file I-485. If she leaves US before USCIS receives her I-485, her I-485 filing will be invalid (equal to her absence in US to file I-485).
So, to be 100% safety, she had better leave US on Thursday or later if she mailed out the I-485 application on August 1 using overnight Express mail (because August 3 and 4 are Sat. and Sun., USCIS may not work). If she mailed out the application on July 31, then it probably be fine for her to leave on August 6, Tuesday.
她隻是最近這次短期回去用現在有效的h1b 簽證回美國，當然，她已經和她老板談了，她的工作肯定是可以保持的。隻是想再下次等拿到批準的ap 和work permit 以後，如果需要回國一段時間（兩三個月）照顧媽媽的話，即使沒有工作的情況下也可以用批準的ap返回美國。這樣應該沒什麽問題吧？
-Then, it will be fine.
