The school staff said that before after Canadian Public school graduation, in one year attained the work visa to be able to apply for the green card, but present this criterion relaxes to three years.

• 学校的工作人员介绍说，以前在加拿大公立学校毕业后，一年内拿到工作签证才能申请绿卡，但是现在这个尺度放宽到三年。