题目内容
【题目】I think ______ can choose their own life style.
A.nineteen-year-old
B.nineteen-year-olds
C.nineteen years old
D.nineteen-year olds
【答案】B
【解析】句意：我认为十九岁的人可以选择他们自己的生活方式。数词-year-old可以当做名词，表示……岁的人，其复数在old后加-s，故选B。
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题目内容
【题目】I think ______ can choose their own life style.
A.nineteen-year-old
B.nineteen-year-olds
C.nineteen years old
D.nineteen-year olds
【答案】B
【解析】句意：我认为十九岁的人可以选择他们自己的生活方式。数词-year-old可以当做名词，表示……岁的人，其复数在old后加-s，故选B。