Odpowiedź :
Together with class, we were walking in the mountains and everyone like it. Unfortunately a few people broke away from the group and we were looking for them all day. I was worried about them as well as our teacher. Like it turned out, they came back to the hotel, *where we have our accomodation.
* zmieniłam "mieszkaliśmy" na miejsce gdzie mieliśmy zakwaterowanie bo myślę, że to poprawniej brzmi. Ale jak już się upierasz na to dosłowne tłumaczenie to wpisz: where we have been living