◎ 题干
The first edition ________ in 1955 and ________ a best seller ever since.   
[     ]
A. was published; had been        
B. was published; has been
C. has been published; has been;    
D. had been published; had
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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 first edition ________ in 1955 and ________ a best seller ever since. [ ]A. was published; had been B. was published; has been C. has been published; …”主要考查了你对  【现在完成时】【一般过去时的被动语态】  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。