查人人中国名人网洗车惠预约不上:一道英语题．请说明原因
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/07 15:47:06
( )24. ---How much are these books?
---You don’t have to ___ . They are free.
A. pay them B. pay for them C. cost them D. spend them
---You don’t have to ___ . They are free.
A. pay them B. pay for them C. cost them D. spend them
)24. ---How much are these books?
---You don’t have to ___ . They are free.
A. pay them B. pay for them C. cost them D. spend them
B
pay for 是词组.
cost 前面要加物品
spend前面加的是人或者是形式主语
B