-They may pay attention your leaving, but they will find it out later, anyway.
如果LD也要重新申请485,我们是否在国内等到PD到了,LD用H1B签证我用H4进入美国再申请呢?
-Yes, if you can find an employer to sponsor the h1 petition in time and then, file a new I-485 when your PD becomes current.
还是PD到了,要一份新的Offer Letter,在国内递交新的485申请,等批准后进入美国保持身份啊
-Not file I-485 outside U.S., but use consular processing. Both of you also can get your green card in China using consular processing when PD becomes current. You or your spouse need a job offer letter from a U.S. employer when you are interviewed for the immigration visa. Contact Guangzhou Consulate for the details or find the relevant information from USCIS website for the Consular processing procedure.