◎ 题干
The audience were _______the performance of Chinese athletes at the 21st Winter Olympics.

A. impressed by  
B. impressed on  
C. interesting in  
D. expressed by
◎ 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 audience were _______the performance of Chinese athletes at the 21st Winter Olympics.[ ]A. impressed by B. impressed onC. interesting inD. expressed by…”主要考查了你对  【介词和介词短语】【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。