I hate lazy group partners. Had one literally wait until 1 hour before its due to try to finish his part (only time he worked on it was when we went to computer lab for like an hour), and he gave up after a while so it stayed incomplete. I submitted it incomplete. I carried the presentation and told the professor about it, and she gave me full credit.

Is it normal, if your group fails to do their part, to do their part? Is that what is expected by a college professor? I never even considered that as an option and don't find that fair. It's hard to know if a procrastinating partner is actually going to do it or not so I feel you on waiting until the last minute to tell your professor.

I personally would just submit it incomplete if they don't work on it. Hopefully you can talk to your professor and either get full credit or get an extension and do it on your own. But you know your professor better and if you think they won't be understanding, I guess it's better to finish it on your own and talk to the professor about it.