Translation of "Apologise" in Chinese

I won’t forgive you unless you apologise sincerely.

我不要原谅你，除非你真诚地抱歉。

Quickly finish up your homework, and apologise to your teacher tomorrow!

快回去把作業寫完，明天再向老師道歉吧！

No. I apologise, but I need to leave a bit early.

不。我很抱歉，但我必须早点回去。