I was (be) with some friends and we _______________ (run) in a race?

I was (be) with some friends and we _______________ (run) in a race. It was a marathon. There _____________ (be) hundreds of runners around us, men and women, and it _____________ (be) extremely hot. As we _____________ (cross) a bridge over a river, I suddenly _____________ (notice) that everyone in the race _______________ (have) the same face, even my friends! They were all the same person! I _____________ (want) to stop, but there ______________ (be) so many people behind me that I _______________ (have to) keep running. Then I _______ __________ (wake up) screaming.