Professor Williams keeps telling his students that the future to the well­-educated.A.

问题补充：

Professor Williams keeps telling his students that the future to the well­-educated.

A. is belonging

B. is belonged

C. belongs

D. will be belonged

答案：

A. is belonging

B. is belonged

(答案→)C. belongs

D. will be belonged

解析：考查时态，由前面的句子可以确定是一般现在时态，所以选C，固定词组keep doing意思“保持做某事”，belong to意思“属于”