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The first two classes on the second day were Advanced Mathematics, and everyone had thought that after Mr. Wang fell ill and was hospitalized, a substitute teacher would take over the class. To their surprise, however, it was still Mr. Wang who showed up to teach the class.
When a spirited Mr. Wang stepped onto the podium, the entire class fell silent in an instant, their eyes filled with astonishment as they looked at the somewhat aging man standing before them.
