It was Friday, the first day of our skiing holiday, and my friend Jason and I __________ down the mountain together. We wanted to catch the ski lift back down to our hotel.
I answered had been skiing, and it was were skiing.
I don't understand this because if they wanted to go back to their hotel that means they had finished skiing for the first day.
Is it because there is no duration that past progressive is preferred or because had been skiing means that their skiing holiday are finished and they will be back home soon.