Mr. Bill liked shooting very much but he was never good at it. A month ago some of his friends visited him in his house and saw a new target(靶子)which Bill had put several days before in his garden. His friends went nearer and looked at this beautiful target. There was a hole right in the middle of the target. When they asked who had shot the target, Bill said he had. They all laughed and said, 'How far away were you ,Bill? Two feet? But Bill said he was fifty yards (码) away. Then Mr. Bill's wife explained about the hole in the middle. She said, 'Bill went to a shop and bought a very big piece of wood. He brought it home in a car, put it in the garden and shot at it from fifty yards away. Then he drew a target round the bole and cut the wood.' One day some of Bill's friends saw ______ in his garden.