spend的主语必须是人, 常用于以下结构:(1) spend time /money on sth. 在……上花费时间(金钱)。例:I spent two hours on this maths problem. 这道数学题花了我两个小时。2) spend time / money (in) doing sth. 花费时间(金钱)做某事。例:They spent two years (in) building this bridge. 造这座桥花了他们两年时间。(3)spend money for sth. 花钱买……。例:His money was spent for books. 他的钱用来买书了。所以应该选C别听上楼的!