He got well-prepared for the job interview for he couldn’t risk the good opportunity. A.

问题补充：

He got well-prepared for the job interview, for he couldn’t risk the good opportunity.

A. to lose

B. losing

C. to be lost

D. being lost

答案：

A. to lose

(答案→)B. losing

C. to be lost

D. being lost

解析： 考查固定结构。Risk doing sth.冒险做某事，所以排除A,C；且主语he和lose是主谓关系，所以选B。