Writing an apology for something that you have forgotten

When you didn't bring something that needed to be handed in: replying quickly
When you didn’t bring something that needed to be handed in: having your child bring it the next day
When you didn’t bring something that needed to be handed in: you think you handed it in, and in fact, you did
When you didn’t bring something that needed to be handed in: you think you handed it in, but in fact, you didn’t
When you didn’t bring a necessary item to school
When your child’s name wasn’t written on something