单选题 The driver ______ the passengers off at the supermarket and then went to the next stop.
【正确答案】 C
【答案解析】[解析] drop off是固定搭配，意为“让……下车”。fall off：减少，脱落；sink off：沉没；step off：走下，步测(长度)。根据句意可知，选C。