1. The grading system is different between China and Canada.
Most international students are used to the letters system, based on a letter from A to F, which ranges from superior to average performance to failure. Many colleges and universities in Canada use this scale to evaluate how well students are performing.
The US government recently confirmed its long-standing policy that Form I-20s may only be released directly to the applying student.
One implication of this is that the I-20 may not be sent to an education agent acting on the student’s behalf
US immigration officials say that this policy is in place for reasons of privacy, security, and fraud prevention.