The dog ran to a house and dropped the bag in front of the front door. It then began to beat its head against the front door. After a while, a big man opened the door and began shouting at the dog. The butcher ran up and shouted at the man, “What are you doing? Your dog is a genius(天才).”

　　The owner of the dog said, “Genius? No way! I always tell him to take the keys when he goes to the stores. But he never listens to me!”

　　( )31. Who was the customer that Sunday morning?

　　A.A big man. B. A butcher. C. A dog. D.A li ttle boy.

　　( )32. How much did the dog pay for the pork chops?

　　A. $20. B. $10. C. $5. D. $62.

　　( )33. How did the dog take the note?

　　A. In the bag. B. On its back. C. In its mouth. D. Around its neck.

　　( )34. Which is NOT right according to the story?

　　A. The dog stood up on its back paws to push the “stop” button.

　　B. The butcher quickly closed the shop to follow the dog.

　　C. The big man was pleased with his dog.

　　D. The butcher thought the dog was a genius.