问题补充：
The women with two children for one and a half hours.
A. have left
B. has left
C. have been away
D. has been away
答案：
A. have left
B. has left
(答案→)C. have been away
D. has been away
解析：句意：带两个孩子的妇女们在一个半小时前就离开了。分析时间是一个段时间，要用延续性动词，leave用be away代替，故选C.
