I am going to apply the US citizenship. Five years ago, I entered US with H4 visa and Chinese passport from Canada. A few months later, I got my Canadian citizenship. I never apply the Canadian passport. In the US citizenship interview, I need to take the passport with me. Which passport should I use? Of course, I can apply a Canadian passport right now, but it is an empty one, all immigration information is in my Chinese passport. I wonder if it will make it complex if I claim I am a Canadian. Can I still say I am a Chinese? Any friend has similar experience, please give some suggestion