◎ 题干
The new dictionaries are very useful. They ______ well and ______ already.

A. sell; have been sold out
B. sold; had sold out
C. sell; sell out
D. are sold; have been sold out
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“The new dictionaries are very useful. They ______ well and ______ already. [ ]A. sell; have been sold out B. sold; had sold out C. sell; sell out D. are…”主要考查了你对  【动词】【现在完成时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。