◎ 题干
_____ at the gate of the theatre, he found the ticket for the play was left at home.
[     ]
A. To arrive  
B. On arriving  
C. As arriving  
D. While arriving
◎ 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“_____ at the gate of the theatre, he found the ticket for the play was left at home.[ ]A. To arrive B. On arriving C. As arrivingD. While arriving …”主要考查了你对  【介词和介词短语】【动名词】  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。