【题目】_____ the trip from Alaska to Argentina by bike, Gregg and Brooks worked and saved money for years.
A. To pay for B. Paying for
C. Paid for D. Pay for
在线课程【答案】A
【解析】
试题分析：考查非谓语动词。句意：为了支付从阿拉斯加到阿根廷的自行车费用，Gregg 和 Brooks 这些年来一直工作省钱；根据saved money可知表示目的，故选A项。