◎ 题干
I didn’t understand the ______question, so there was a ______expression on his face.
[     ]
A. puzzling, puzzled  
B. puzzling, puzzling  
C. puzzled, puzzled
D. puzzled , puzzling
◎ 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“I didn’t understand the ______question, so there was a ______expression on his face.[ ]A. puzzling, puzzledB. puzzling, puzzlingC. puzzled, puzzled D. puzz…”主要考查了你对  【现在分词】【过去分词】  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。