I need advice...

[Attractive#7]

I'm in grad school and one of my classes requires us to do a group research project. There are two guys in my group and two ladies (including myself). One guy I'm pretty cool with (I've known since high school but we aren't extrememly close friends), the other guy I've never seen before. The other guy has missed 4 out of 6 classes and has contributed NOTHING. The guy that I know contributed once, but it wasn't a lot. The bulk of the work has been on the older lady and myself. I HATE GROUP PROJECTS!!! Anyway, at the end of the project, we have to evaluate each group member and if they didn't work, their grade suffers. I don't have the heart to tell on the two that didn't do anything. I don't know if the other lady in the group is going to tell on them or not, but my teacher has made a REALLY big deal stressing that we have to evaluate each other. My friday night has now been spent working on this damn paper because one of the guys didn't email me some info like he said he would and now he's outta town. What should I do???