◎ 题干
—Car prices have been going down sharply in the last 20 years.
—It's not surprising because the law of market ________ the price of a product.
A.is controllingB.controls
C.has controlledD.controlled
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“—Car prices have been going down sharply in the last 20 years.—It's not surprising because the law of market ________ the price of a product.A.is controllingB…”主要考查了你对  【一般现在时】【一般现在时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。