I was invited to supervise an exam this afternoon. I always have been supervised by others when I take an exam. It was the first time for me to supervise an exam. It was challenging.

At the beginning, I was told some points that were important such as examining the number of test papers and maintaining discipline in the examination room. I felt a bit nervous. As time goes on, I was adapted to it. Some students' behavior was interesting at the process of exam. Some students scratched their heads. They seemed to meet some questions. Some students looked around. It seemed that they had nothing to do. Before the end of the exam, the students began to get impatient. They wanted to hand in their test papers quickly. So the last minute is very painful for students.

Looking at these students, I thought of myself. When I was at the age, my behavior was similar to them.