Finally the class is over . Be quick . Ben must have been waiting for long .   Oh , I am so tired . My back is sore and my neck hurts .   That's normal . You have been sitting for three hours , with your attention highly concentrated .   You are wrong , Shirley . I was always absent-minded in the class . I meant to concentrate on the class , but I was just so tired . Maybe I am old .   No . You are just burning yourself out these days . Have a good rest and you will feel energetic again .   One of my friends took the Adult College Entrance Exam last year . He filled the school column with his name , and his score was relinquished .   How could he make such a silly mistake ?   He said he hadn't taken any exams for ten years , and couldn't get used to it immediately . He was extremely nervous then .   He lost a very good chance to go to college , didn't he ?   Yeah . The test was fairly easy and almost every test-taker could pass that exam . Adult College Entrance Exam is much easier than college entrance exam . And there are fewer subjects . 