My grandfather was a very interesting man. He died when I was （判断正误)

My grandfather was a very interesting man. He died when I was 11, but 1 remember he used to tell me stories about his early life. He told me one about how he used to race dogs. They raced greyhound , a very fast type of dog. My grandfather had a dog that was very fast and usually won the races. The men used to bet on the dogs and try to win money. One day before a race, a friend of my grandfather' s suggested that they bet on a different dog and make my grandfather' s dog lose the race. My grandfather had no job , so this seemed an easy way to make money. On the day of the race, my grandfather and his friend fed the dog lots of cakes 50 it wouldn't want to run. Then they took it for a long walk so it was tired. They bet on another dog , but when the race was run , my grandfather's dog won anyway , so they lost a11 their money and didn't win anything!

26. The author's grandfather doesn't tell stories now.()

27. His dog usually was a loser in races.()

28. The author' s grandfather didn't want to win money from dog race.()

29. The author' s grandfather and his friend fed the dog cakes to make it strong.()

30. The author' s grandfather and his friend bet on a dog which didn't win.()