我改过自新，开始准时上班。

I ___turned ___over ___a ___new ___leaf and began getting to work on time.

她承诺要改过自新。

She promised to ___turn ___over ___a ___new ___leaf.

那次事件后，他决定改过自新，变得更有责任感。

After the incident, he decided to ___turn ___over ___a ___new ___leaf and become more responsible.