◎ 题干
Eye doctors recommend that a child’s first eye exam ________ at the age of six months old.                    
A.was B.be
C.were D.is
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Eye doctors recommend that a child’s first eye exam ________ at the age of six months old. (2013·浙江,8)A.wasB.beC.were D.is…”主要考查了你对  【序数词】  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。