◎ 题干
He has left out the most important reason why he________last night.
[      ]
A. stayed up  
B. put up
C. picked up  
D. kept up
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“He has left out the most important reason why he________last night.[ ]A. stayed upB. put upC. picked upD. kept up…”主要考查了你对  【动词短语】  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。