◎ 题干
The boy is _____. Today is his ______ birthday.
[     ]
A. twelfth; twelfth  
B. twelve; twelfth  
C. twelfth; twelve  
D. twelve; twelve
◎ 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“The boy is _____. Today is his _____ birthday.[ ]A. twelfth; twelfthB. twelve; twelfthC. twelfth; twelveD. twelve; twelve…”主要考查了你对  【基数词】【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。