He was a good student and scored average in most subjects.A. belowB. ofC. onD. above

问题补充：

He was a good student and scored average in most subjects.

A. below

B. of

C. on

D. above

答案：

A. below

B. of

C. on

(答案→)D. above

解析：介词辨析. A.在……之下 B.……的 C.在上面 D.在……上方；高于。句意：他是一个不错的学生，大部分科目得分都在及格线以上。故选D。