他每天工作八小时来养家。

He ___works eight hours a day to support his family.

我的手机突然不工作了，我需要找人修一下。

My phone suddenly stopped ___working, so I need to get it fixed.

她在学校工作，是一名老师。

She ___works at a school as a teacher.

她正在将金属片加工成一个精致的装饰品。

She is ___working the metal sheet into an intricate ornament.

这个新方法很有效，解决了我们长期存在的问题。

The new method ___worked well and solved our long-standing problem.