问题补充：
has finished the work ahead of time will be rewarded．
A. Those who
B. Anyone
C. No matter who
D. Whoever
答案：
A. Those who
B. Anyone
C. No matter who
(答案→)D. Whoever
解析：主要测试主语从句。由语境和答案相结合可知句子has finished the work ahead of time 属于主语从句，答案those who正确的前提是句子中动词has改为have即可，故此选择whoever相当于anyone who。译文：无论谁提前完成工作都将受到奖励的。
