◎ 题干
— What made Bill so angry? 
—  _____. His girl friend promised to come at 8:30, but she hasn't come yet.
[     ]
A. Having kept waiting
B. Being kept waiting
C. To be kept waiting
D. Being kept waited
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—What made Bill so angry?— _____. His girl friend promised to come at 8:30, but she hasn't come yet. [ ]A. Having kept waitingB. Being kept waiting C. To …”主要考查了你对  【动名词的被动式】  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。