(括号里是指过去式）(1)spend的三种用法：spend on sth.例如：I spent150 yuan on the shirt.spend doing sth.例如：I spent 150 yuan buying the shirt.spend in doing sth..例如：I spent 150 yuan in buying the shirt.(2)pay……for……例如：I paid 150 yuan for the shirt.(3)cost：1.It cost sb.+some money +to do sth.例如：It cost me150 yuan to buy the shirt.2.某物+cost+sb.+钱 例如：...
