Using coordination:Access to the cabin is given by a personal card, which also serves as a credit card for everything you buy on board, including drinks. There is no need to carry each.

【正确答案】正确答案：Access to the cabin is given by a personal card，which also serves as a credit card for everything you buy on board，including drinks，so there is no need to carry cash．

【答案解析】解析：本题考查半并列连接词so的用法。第一句句意为：每位进入客舱的人会被给予一张个人卡；这张卡也可以作为你在船上购买任何物品的签账卡。第二句句意为：没必要携带现金。前后两句存在因果关系。