父母B2入境 很快递交了绿卡申请（130，485）。 递交没多久就发现不适应这里生活不适合久居，决定撤回绿卡。请问：
1. 撤回绿卡后是否自动回到B2身份？
-The B2 status is still valid during I-485 pending unless the I-94 expires.
2. 是否I94过期前出境就可以？
-Correct.
3. 撤回绿卡后是否会影响以后的B2申请？
-It should not affect the B2 visa application. USCIS will send them the I-485 withdrawal notice after the I-485 withdrawal request is approved, i.e., the confirmation letter-officially closed your parents I-485 application.
?Your parents should bring the I-485 withdrawal approval notice when they are interviewed for the new B2 visa application or enter US using B2 visa in case the officer asks the immigrant intent questions.
4. 如果B2签证还有几年有效期， 撤回绿卡是否会影响以后入境？
-It should be fine. See above.
