单选题 As the price of oil keeps______, people have to pay more for driving a car.
【正确答案】 A
【答案解析】解析:keep(on)doing sth.表示“一直(继续)做”,只有A.going up符合题意,代入句中,意为“油价持续增长,人们在开车时不得不花费更多”。