chapter 31 Is this question difficult?

"Ring, ring, ring," the bell that ended the exam suddenly rang. The big bosses from the Education Bureau who gathered in front of the examination room were all shocked, wishing they had two more pairs of eyes looking at the stairs, for fear of missing the target. Students began to walk out of the examination room. As soon as they came out, they were stunned by the posture in front of them. All the teachers, heads of grades, principals and vice principals of the school were among them,...