我是加拿大公民， 我父亲申请我以成年未婚子女身份来美。
今年1月收到I-797/NOTICE OF ACTION FROM SVC，PETTION HAS BEEN APPRPVED.
请问
1. 大概还要等多长时间才能拿到签证
-About 7 to 8 years form now on if you don't get married during this period of time. If you get married any time before you get the green card, then it is about 13 years from now on.
2. 我父亲得肺癌，如果他有不测，我的申请是否会取消？
-If the I-130 is approved before your father passes away (if any), then this case will still be valid as long as you find one of your relatives who is a US citizen or green card holder (e.g. your mother, sibling) to the be substitute sponsor. If it is pending or approved after your father passes away, then the case will be invalid.
PETITIONER 只有我父亲一人名字，现在我可否把我母亲的名字加上
-No. But you may ask your mother to file a separate I-130 for you, just in case.
