Correct 6 mistakes. Before Christmas the family buyed a sledge for Dad. They putted it under the Christmas tree and doesn't want to tell Dad about it.In the evening the family had dinner all together. Michael didn't kept a secret. In the morning they all went sledding. And Michael prepare a surprise for his family. He presented a rope for the sledge to pull it up the hill. So finally, Michael keept a secret.
Before Christmas the family bought a sledge for Dad. They put it under the Christmas tree and didn't want to tell Dad about it. In the evening the family had dinner all together. Michael didn't keep a secret. In the morning they all went sledding. And Michael prepared a surprise for his family. He presented a rope for the sledge to pull it up the hill. So finally, Michael kept a secret.