How to: apologize and explain.

Carla- Ivet ! Where have you been?

Ivet- Upps! I've been studying in the public library.

Carla- Ivet! The truth please.

Ivet- Okay, Gemma invite me to Lady Gaga's concert. And I've studied a lot so I though that I could go!

Carla- Ivet this is the fourth time that you do something and you haven't asked me.

Ivet- I'm really sorry Carla, it won't happen again, I promise.

Carla- All right, We'll see.