[求助]og81

81.In an effort to reduce their inventories,Italian viners have cut prices;their wines have been priced to sell,and they are.

(a)  have been priced to sell,and they are

(b)  are priced to sell,and they have

(c)  are priced to sell, and they do

(d)  are being priced to sell, and have

(e)  had been priced to sell,and they have

答案选Ｃ，我看了ＯＧ的解释，但还是不明白，请大家帮忙解决一下，ＴＨＡＮＫ　ＹＯＵ　！

mm可以用搜索功能查询OG81，有很多以前讨论的结果。善用这个强大功能哦。

说到这里顺便说一下mm发表主题得标题格式不太规范啦应该写OG81才对。

be priced to sell的意思是说制定一个合适的价格。

they do的they指的是wine，意思是their wine do sell，他们的酒的确卖得很好。

Thank you !  我把格式改过来了．

本来我搜过的，但以前的８１题和现在不一样，所以只好再发．

还是非常感谢！