Mr Black _______ $50,000 ________ the new car.
A.cost; onB.took; inC.paid; onD.spent; on在线课程D
sb. spends some money on sth.某人在某物上花钱；it takessb. some time to do sth.某人做某事花多少时间；sth. costs sb. some money某物花费某人多少钱；sb. Pay (some money) for sth.某人为某物付款。根据句型结构可知此处只有D项正确。