妈妈收到加拿大北京大使馆来件,做了移民的体检完毕后发现中国的passport 过期了,中国的大使馆不换new passport, said it illegal stay Canada, what we can do now or my mom have to back to China change the passport then send to Bejing Canada 大使馆?then she have to stay China waiting for, My mom not have any child in china now, me and my sister...