1.C 兵营，营房　large building for soldiers to live in
2.C 简陋或难看的房屋　any building of plain or ugly appearance

1. barracks意为“兵营，营房”，也可指简陋的大房子，如工地等处的临时工房。注意，即使是一座营房，也需用barracks.
2. barracks是单复数同形的名词，用作主语时，如泛指营房，谓语动词用单数形式；如指具体的营房，则谓语动词根据实际所指可用单数形式，也可用复数形式。

　There used to be a barracks.　从前这里有一座营房。
　You can't expect me to live in a barracks like that.　你别以为我会住在那样简陋的房子里。
　The barracks were inspected daily.　营房每天有人检查。
　You must be back in barracks by 10 o'clock tonight.　今晚10点前你必须归队。
　He was confined to barracks for striking an officer.　他因为打了军官而在营房里蹲禁闭。

如用在名词前作定语，则只能用barrack，如：a barrack unit一处兵营。