We didnt go home the old man was sent to the hospital. A. until B. when C. while

问题补充：

We didn go home the old man was sent to the hospital.

A. until B. when C. while

答案：

解析：考查连词的用法。not…until“直到…才”。句意为：直到把老人送去医院，我们才回家。故选A。