I think should be allowed to choose their own clothes.A. ten-year-oldB. ten-year-oldsC. t

问题补充：

I think should be allowed to choose their own clothes.

A. ten-year-old

B. ten-year-olds

C. ten-years-olds

D. ten-years-old

答案：

A. ten-year-old

(答案→)B. ten-year-olds

C. ten-years-olds

D. ten-years-old

解析：句意：我认为十岁的青少年应该被允许选择自己的衣服。ten-year-old是一个合成形容词，在此类此类词中，名词用单数。根据句意可知ten-year-old在此句中指十岁的孩子，故在词末加-s构成复数名词，所以选B。