diligence

她以极大的细心完成了这份报告。

She completed the report with great ___diligence.

他凭借不懈努力和勤奋工作赢得了晋升机会。

His ___diligence in work earned him the promotion opportunity.

他的勤奋和坚持最终帮助他通过了考试。

His ___diligence and perseverance finally helped him pass the exam.