Could I ask for linking my approved Form I-140 (EB2) to Form I-4 WTO92007-06-14 04:32:42

My I140 (Eb2) was approved one year ago. Because I am a Chinese, I cannot file Form I485. I filed Form I-140 (Eb1a) concurrently with I-485 last month. I just knew I can file Form I-485 based on my approved Form I-140 (EB2) next month. How to do? Could I ask for linking my approved Form I-140 (EB2) to Form I-485?