◎ 题干
________ back to China, all the staff who had worked in Libya strongly felt that our country is very
powerful.  
[     ]
A. To fly
B. Being flying
C. To be flown
D. Having been flown
◎ 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“________ back to China, all the staff who had worked in Libya strongly felt that our country is very powerful.[ ]A. To flyB. Being flyingC. To be flownD. Ha…”主要考查了你对  【现在分词的完成式】  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。