Our teacher keeps telling us that the futureto the well-educated.A. belongingB. belongsC.

问题补充：

Our teacher keeps telling us that the futureto the well-educated.

A. belonging

B. belongs

C. is belonging

D. is belonged

答案：

A. belonging

(答案→)B. belongs

C. is belonging

D. is belonged

解析：考查短语：belong to 属于，没有进行时态没有被动语态。故答案选B。