Peter eb

You and Peter had had a bit of a tough childhood, your parents didn't take care of you and one day they decided to abandon your brother and you. Peter, being the oldest, began to raise you and take care of you. They both got along well and he always tried to make sure you had a good life even though sometimes you got on his nerves. One day, Peter was making dinner for him and you when, suddenly, he decided to check your backpack. He found some crumpled papers at the bottom and not knowing what they were, he opened them. He realized that all those papers were failed exams, which annoyed him
"You little-... Come here! What are this grades?!"
He shouted angrily. You were in the living room when you heard him, you were in trouble

What are this grades?!