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He began to learn Chinese in his _____.
A.fifty B.fiftieth C.fifties D.fifth
人气:218 ℃ 时间:2020-01-28 02:14:03
解答
He began to learn Chinese in his _____.
选C
这是固定词组【in ones +年龄+s】表示在某人多少岁时,数字用复数
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