不对 应该用spend 人作主语 用spend spend .on ; spend .【in】doing ;物作主语用cost it 作主语用take pay.for 固定搭配 I spent 50 dollars buying these shoes I paid 50 dollars for these shoes these shoes cost me 50 dollars it took me 50 dollars to buy these shoes
不对,cost只能用来说“某物花了某人多少钱”主语只能是物。这里应该用spent 具体cost pay take spend 的区别如下 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...