问题
选择题
He is a _____ boy. [ ]
A. 2-year-old
B. 2 year old
C. at age of 2
D. 2 years old.
答案
答案：A
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He is a _____ boy. [ ]
A. 2-year-old
B. 2 year old
C. at age of 2
D. 2 years old.
答案：A