I think ____should not drive anywhere

问题描述:

I think ____should not drive anywhere
A.sixteen-year-old B.sixteen-years-old C.sixteen-year-olds
为什么

C为什么,谢谢,详细些sixteen-year-old 十六岁的(是个形容词)sixteen-years-old没有这么个单词sixteen-year-olds 十六岁的孩子 (为名词)那C,year与 olds之间可以有连字符吗有的