1 The waiter has brought the wrong soup.
Waiter: Oh dear, I'm really sorry (really sorry).
Customer: Don't worry about it (worry).
2 The boy hasn't tidied his room.
Boy: Don't be mad at me, but I haven't tidied my room (mad).
Dad: Never mind (mind). You can do it later.
3 The girl has broken her brother's model plane.
Girl: I'm sorry (sorry). I didn't mean to break your model plane.
Boy: Forget it (forget). It was very old.
4 You got off the bus at the wrong stop, so you arrived at the theatre late.
You: I'm sorry, I made a mistake (make / mistake) and I got off at the wrong stop.
Your friend: It doesn't matter (matter).