I said I would time

After half a minute, Lin Xing panted and ran into the classroom. She let out a sigh of relief, then laughed: "It's okay, it's okay, I almost missed class.",At this moment, the classroom was empty except for Lin Xing. He casually chose a seat and sat down, taking out his books from his bag while continuing to think about his plan.,Just then, with a light crack, the front door of the classroom swung open.。