-Whose CD player is this?-It's mine. It ________ me 800 yuan.A.tookB.spentC.paidD.cost
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D解析it指的是the CD player．商品等物做主语时要用cost．take常用的结构是“It takes sb. some time to do sth.”，spend常用的结构是“spend…(in) doing”“spend…on+名词或代词”，其主语由“人”来充当．pay常用的结构是“pay+钱数+for+商品”．因此