经过多年的努力，他成为了一名著名的演员。

He ___became a famous actor after years of hard work.

我决定成为一名老师，因为我喜欢帮助别人。

I decided to ___become a teacher because I love helping others.

有了这份新工作，她将变得经济独立。

With this new job, she will ___become financially independent.