What made Bill so angry?---------His girlfriend promised to come at 8：00,but she hasn‘t turned
问题描述：
What made Bill so angry?---------His girlfriend promised to come at 8：00,but she hasn‘t turned
A：Having kept waiting B：To be keep waiting.
c：Being kept waiting D：Being kept waiting.
答
Awhy?这里想表示，他等女朋友好久了，一直在等。女朋友承诺八点到，但是仍然没到。所以要用现在完成时，表示从过去一直到现在，have done 形式