我们打算在来到美国3个月后提出申请，如果他们6个月內没有得到移民局任何反饋 ,
他们是否应该留下（申请延期）或回国？ 下次过来还 持有 10Y B2 Visa 入关 有问题吗？
-Afer they file I-485, they can legally stay in US until getting their green card, no more B2 extension or B2 visa use due to immigration intent. They can apply for advance parole to travel to China during the I-485 pending.
他们是否应该留下（申请延期）或回国？ 下次过来还 持有 10Y B2 Visa 入关 有问题吗？
-Afer they file I-485, they can legally stay in US until getting their green card, no more B2 extension or B2 visa use due to immigration intent. They can apply for advance parole to travel to China during the I-485 pending.
