◎ 题干
The United States of America _____one of the most developed countries in the world.
A.is B.are C.was D.were
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“The United States of America _____one of the most developed countries in the world.A.isB.areC.wasD.were…”主要考查了你对  【主谓一致】  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。