题目内容
With the help of his mother,Tom,a ______ boy,succeeded at last.
A.fifteen year old B.fifteen-years-old
C.fifteen-year-old D.fifteen-year old
C

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题目内容
With the help of his mother,Tom,a ______ boy,succeeded at last.
A.fifteen year old B.fifteen-years-old
C.fifteen-year-old D.fifteen-year old
C