— What made Bill so angry?
— . His girl friend promised to e at 8:30, but she hasn’t e yet.
A. Having kept waiting
B. Being kept waiting
C. To be kept waiting
D. He was kept waiting
网友回答
A. Having kept waiting
(答案→)B. Being kept waiting
C. To be kept waiting
D. He was kept waiting
解析：考查动名词做主语。本句是回答what的问句，所选之项必须能够做主语。根据句意使用被动形式，排除A项，D项缺少连接词that，C项表示将来。故B正确。句意：—什么事情让Bill如此生气？—别人让他等。他的女朋友答应8点半到的，但是她却没有来。故B正确。