The boy in the exam is a student in Class Nine.A. catching cheatingB. caught cheatedC. c

问题补充：

The boy in the exam is a student in Class Nine.

A. catching cheating

B. caught cheated

C. catching cheated

D. caught cheating

答案：

A. catching cheating

B. caught cheated

C. catching cheated

(答案→)D. caught cheating

解析：考查非谓语动词。the boy与catch是动宾关系，应该使用过去分词作后置定语，相当于who was caught cheating，排除A、C；catch sb doing sth撞见某人正在做某事，排除B。故选D。