if you dont have any plan go back to china next summer, just apply your re-entry for one entry, extend your passport and study permit here after you come back canada from china.
if you do, extend your passport first, then apply your reentry for multiply entries, you can go home la~
after you come back from china, you can extend your study permit here
if your passport will expire next april,for instance, 2007, 4 29. immigration officer will only give your re-entry the date on which your passport expire, which means 2007.4.29 .
