Do you just wait for approval when applying for immigration to Canada? Do I have to stay there or can I go back to China?

Not necessarily. If the Immigration Bureau thinks that you don't meet the requirements, it will still reject your immigration application and then refund the fee.

After the application is submitted, if it is submitted to the United States, it is best for the principal applicant to wait in Canada, because once requested,

It is easier to apply for a visa to the United States from Canada if you go to the United States for an interview. It doesn't matter if the accompanying family members. exist

You can wait anywhere.

The rule of living for three years within five years is formulated for those who have already obtained immigration (that is, permanent residents). Immigration applicants will not

On the premise of complying with these provisions.