Так как наш поезд должен был стоять

Так как наш поезд должен был стоять на станции в течении пятнадцати минут, мы решили сойти с поезда, чтобы прогуляться и купить журналы в газетном киоске напротив нашего вагона.

Результаты (английский) 1:

As our train was standing at the station within 15 minutes, we decided to get off the train to stroll and buy the magazines in the newsstand in front of our car.

Результаты (английский) 2:

Since our train was standing at the station within fifteen minutes, we decided to get off the train to walk and buy magazines at the newsstand in front of our car.

Результаты (английский) 3:

as our train was standing at the station for 15 minutes, we decided to get off the train, to go out and buy a magazine at a newsstand in front of our car.