David was a doctor. He spent 1 time in playing when he was in the medical college. Of course, he learned nothing. Later on, he tried to find a 2 in the cities, but he failed. He 3 return to his hometown. It was 4 and there was only one hospital in it. He thought he knew much and looked down upon (瞧不起) his 5. But soon the patients found he was not a good doctor 6 few asked him to look them over. He knew but he didn't 7.

One day a traveler came into his office. The man caught a cold and wanted some 8. David hoped to be paid more and looked over one of the traveler's eyes 9. "Oh dear!" called out David, "You have a bad heart disease. You should be in hospital and only I can help you! "Please 10 my right eye, Sir, "said the traveler, "the left one is false (假的). "