He is an boy from a small village in Guangxi. A. eight—year—old B. eight—years—old C. eig

发布时间：2020-08-21 17:24:14

He is an      boy from a small village in Guangxi.
A. eight—year—old    B. eight—years—old  C. eight year old

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解析：此题重点考查合成形容词的基本构成，数词+名词(+形容词)；合成形容词中的名词(year, hour, metre, month等)必须用单数形式。因8的第一个音素是元音音素，故不定冠词用an.
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