The most important thing you must remember is that success doesn’t come ________ and that it’s the result of years of hard work.

The young man was often seen by the lake.

Finally, a god was so by Yu Gong.

依次填入下列各句横线处的成语，最恰当的一组是（ ）①医疗质量是关系到病人生命安危的大事，救死扶伤是医务人员 _________ 的天职。②中国传统的严父慈母型的家庭关系，常令父亲们 _________地承担起教育子女的义务。③在全国比赛中屡获金奖的我省杂技团，_________ 地承担了这次出国演出任务。

Not for a moment _____ the truth of my story. [ ]