英语翻译请用英语翻译:"终于可以学以致用了" "我们只剩下四个人了" "我升级为领班"

不辜负任何人的期望
Live up to everyone's expectation;
终于可以学以致用了
Apply the acquired acknowledge in practical use
我们只剩下四个人了
There are only four of us left.
我升级为领班
I was promoted to the supervisor/foreman/forewoman.