He ask me very basic questions and about our relation and after our marriage.we have a lots of communication proof. FB chat, whatsapp, emails, gift receipts, money receipts, etc.. all proof i provide to him alomost 3 big box files. and a lots of our pictures together.
He ask about pictures where, when and who is in pictures, about like and dislikes of her, where she is working, about her family and friends, even names, what kind of job i want there. why i marry with her why not from pakistan, what you will do if i reject your application..
1st he ask me questions almost 20 minutes and after he call my wife and ask the same questions to her for 10 minutes and then he call both of us and said congratulation you passed the eligibility.
Every case is different and please prepare accordingly....when you are in Canadian immigration waiting for your interview it is good if both of you look happy with each other...because the interviewer watching you through camera also...he said to me during interview that he was observing us through cameras also...
Best of Luck everybody soon InshaAllah you will hear good news also