This is probably every avoiders nightmare. Partner work. I wish I had a secret formula or a magic potion on how to avoid this but I've been sitting here try to find a solution and it hasn't worked.  The best I can say is to try to work together (or do all the work your choice) to finish it as soon as possible. Don't rush it because I don't want to be the reason of your new grade drop but try to work efficiently and waste no time. The faster you start it the faster you finish it.