every student is asked to write a__article

问题描述:

every student is asked to write a__article
A.five-thousand-word B.five-thousand-words
C.five-thousands-wordD.five-thousands-words
着到题选什么?说明下理由.

A.five-thousand-word
因为five-thousand-word 是形容词(adjective),adjective不该有众数.