In those days our concern was to provide people who were stopped by the snow storm with

问题补充：

In those days, our concern was to provide people who were stopped by the snow storm with food and health care.

A. normal

B. constant

C. permanent

D. primary

答案：

A. normal

B. constant

C. permanent

(答案→)D. primary

解析：

根据题意，在那些时候，我们主要的任务是给那些被暴风雪阻挡的人们提供食物和医疗救助,primary符合题意，normal表示正常的， constant表示恒定的 permanent表示永久的。