I‘m sorry,sir (madam)。
对不起,先生(小姐)。
I‘m very sorry.
非常抱歉。
I‘m sorry to trouble you.
对不起打扰你了。
I‘m sorry to have taken so much of your time.
对不起占用你太多时间了。
I‘m sorry to have kept you waiting .
对不起让你久等。
Excuse me for interrupeing you.
原谅我打挠你了。
I hope you‘ll forgive me.
我希望你能原谅我。
Answers to Apology(对道歉语的应答)
It doesn‘t mater.
没关系。
It‘s nothing.
没什么。
Never mind.
别放在心上。
That‘s nothing.
没什么。
Don‘t bother about that.
别再想它。
Don‘t worry about it.
别担心。
Don‘t apologize, It was my fault.
别道歉,这是我的错。