回答

・I'm sorry that I canceled the lesson at the last minute.
・I apologize for the last minute cancellation.

"對不起，我在最後一刻取消了課程"

1. I'm sorry that I canceled the lesson at the last minute.

I'm sorry that 主語+動詞 （或 I'm sorry for ~ing )
～對不起，請原諒。
cancel---（動詞）取消
at the last minute --在最後一刻

２.I apologize for the last-minute cancellation.

I apologize for ~對~表示道歉。
the last-minute cancellation.----最後一刻的取消

之後可以加上Because I had to ~
因為~不得不這麼做。
等表達方式

有幫助｜0