【答案解析】[听力原文] 44-46 W: Jack, the security team said that you entered the building after hours last night. What were you doing? M: I left some blueprints here yesterday, and I had to come get them. W: Well, in the future, you have to come to the main entrance and sign in if it's after 7:00 p.m. M: I know. I was in a hurry. It won't happen again.