Question

________ should not to be allowed to work at night.

A．Sixteen-year-olds	B．Sixteen-years-old
C．Sixteen year olds	D．Sixteen-years-olds

Answer 1

A

试题分析：句意：16岁的孩子们不应允许夜间工作。形容语转换成名词，表示某一类人，故选A。