问题:
_______should not be allowed to get ears pierced.
A.Twelve-year-old
B.Twelve-year-olds
C.Twelve years old
D.Twelve years olds
_______should not be allowed to get ears pierced.
A.Twelve-year-old
B.Twelve-year-olds
C.Twelve years old
D.Twelve years olds
A.Twelve-year-old
B.Twelve-year-olds
C.Twelve years old
D.Twelve years olds
参考答案: