過去我曾經在加油站、火鍋店、咖啡廳打工過，

過去我曾經在加油站、火鍋店、咖啡廳打工過，

結果 (英文) 1:

I have worked in the past the gas station, hot pot restaurants, cafes work too,

結果 (英文) 2:

I used to work at gas stations, hot pot shops, coffee shops,

結果 (英文) 3:

I used to work in gas stations, hot pot shops and coffee shops,