哦，对不起，我坐错座位了吗？

Oh, ___Excuse ___me, did I take your seat?

对不起，我明天要错过英语课了。

___Excuse ___me, I'm going to miss the English class tomorrow.

对不起，我不是故意踩到你的脚。

___Excuse ___me, I didn't mean to step on your foot.