What TOPIC or BIG SUBJECT is the author discussing in this passage?
Today was Friday and Mark knew that meant it was Fun Friday at school. All the students were allowed to participate in Fun Friday if they turned in their homework. Mark walked into class and open his backpack. He stared inside and froze. He had left his homework on the counter. He tried to think quickly, what could he say? He could tell Mr. Barnes that his little brother had thrown it away. He could tell him that he dropped it on the bus or he could say that he already turned it in and that Mr. Barnes must have lost it. "Where's your homework, Mark?" asked Mr. Barnes. Mark just hung his head, he couldn't tell a lie. "I left it at home", he said quietly.