The young man who had rushed into the fire to save the old man rewarding.A. reservedB.

问题补充：

The young man, who had rushed into the fire to save the old man, rewarding.

A. reserved

B. deserved

C. preserved

D. deserted

答案：

A. reserved

(答案→)B. deserved

C. preserved

D. deserted

解析：考查动词：A. reserved预定B. deserved值得C. preserved保留D. deserted抛弃，句意：冲进大火救老人的年轻人值得被奖励。选B。