用中国护照上、在加拿大签发的美国签证到美国,再用加拿大护照返加,可以吗?更换国籍了,旧护照上的美国签证有效吗(J1)?
OK, my friend ( PR holder) is working in US with a working visa on his Chinese passport. His applied citizenship and the citizenship ceremony is scheduled in 2 weeks. Of course he will come back and change the passport. Then Quest is...