◎ 题干
The Chinese mainland pandas, Tuantuan and Yuanyuan, _____ to Taiwan on Dec. 23nd,2008.
[     ]
A. sent
B. were sending
C. had sent
D. were sent
◎ 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 Chinese mainland pandas, Tuantuan and Yuanyuan, _____ to Taiwan on Dec. 23nd,2008. [ ]A. sentB. were sending C. had sent D. were sent …”主要考查了你对  【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。