四、閱讀測驗
        From 1948 to 1993, when white people ruled South Africa, only black people with permits could go in whitepeople’s areas. One day, two black men met in a whites-only section of a city. One of them had a permit to work in thezone, but the other did not.
       Suddenly they saw a policeman coming towards them, and they felt worried. “Run!” whispered the man with thepermit to his friend. “I’ll follow behind.”
      So they started running and the policeman shouted “Stop, stop! ” and began to chase them.
      After a while, he caught the second man.
     “Did you think you could get away?” he snarled. “Show me your permit!”
      The man, playing for time, fumbled in his pockets for over one minute and finally took out his permit.
      The policeman was surprised. He knew that he had been tricked. The man without the permit was now too faraway to be caught.
     “You had a permit, but why did you run?” the officer asked unhappily.
     “Doctor’s orders, ” said the man. “My doctor has asked me to run a mile every evening.”
     “Oh, yes?” the policeman doubted. “Then why was your friend running?”
     “His doctor has ordered him to run, too,” said the man.
     The policeman became red with rage.
     “You think you’re very smart, don’t you?” he yelled. “But tell me, if you were only running for your health, whydidn’t you stop when you saw me running after you? And don’t tell me you didn’t see me chasing you...... I know youdid!”
      “Of course I knew you were running after me,” said the man.
      “Then why didn’t you stop?” asked the policeman, ready to arrest the man once he admitted his wrongdoing.
      “I thought you too had been ordered to run by your doctor,” said the man.
【題組】21. Why were the two black men worried when they saw the policeman walking towards them?
(A) They just stole something and the policeman might find out.
(B) One of them didn’t have a permit to enter white people’s area.
(C) The policeman hated black people and might shoot them to death.
(D) They got some traffic tickets and hadn’t paid the fine.