Applied4PR.
No the immigration officer didn't ask us that. When they entered my husbands name it already shows in their system that he is being sponsored inland, so they ask us the questions and tell us that they see a sponsorship application in process. Honestly it also depends on the mood of the officer whether they will deny you entry or let you in... We had all the proofs his multiple visas plus our son and of course I'm pregnant so they looked at that too. My husband just told the officer that he's here taking care of our son and me while and he cannot leave us behind on our own so that put a lot of affect on the entry too.
however the CIC shares the same info with the Customs with the borders or airport that there is a file in process so they let you know before hand.
I hope I answered your question.