...Guide Metrorail(地铁) Each passenger needs a farecard to...
card the fare is 1.25.可知如果使用SmarTrip?card的话,乘客可以节省0.1美元, 故答案选B。 4.细节理解题。根据文章末段内容If you lose something on a bus or train or in a station please call Lost &Found at 202-962-1195 可知如果乘客丢失物品的话可以拨打失物招领处的电话202-962-1195,故答案选A。