what should I submit as my current visa in the U.S?

[J B]

I switched my status from F-1 to H1-B a couple of years ago. I haven\'t left the U.S since then, so I don\'t have a H1-B visa stamp on my passport (I only have a valid I-94 for H1-B and the approval letter). Now I want to apply for Canadian PR. In the checklist, I found I need to submit a copy of my current visa, what should I give them, a copy of my I-94?

Thanks for any input in advance.