He worked hard he passed the exam.A. in a resultB. as result C. as a resultD. for a resu

问题补充：

He worked hard, he passed the exam.

A. in a result

B. as result

C. as a result

D. for a result

答案：

A. in a result

B. as result

(答案→)C. as a result

D. for a result

解析：考查固定词组。固定词组as a result结果是；强调上下文的因果关系。句意：他学习很努力，结果他通过了考试。