◎ 题干
The Great Pyramid is said to ________by aliens. Is there a chance that this might be true?
  [      ]
A. be built      
B. have been built
C. being built        
D. built
◎ 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 Great Pyramid is said to ________by aliens. Is there a chance that this might be true? [ ]A. be built B. have been builtC. being builtD. built…”主要考查了你对  【不定式的完成式】【不定式的被动式】  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。