One day, two brothers ___(1)___ fishing. They had a dog ___(2)___ them when they came near the river, they threw down their caps on a big stone and went to the ___(3)___ bank to ___(4)___ fish. It was cold that day, and soon they began to wish for their caps. They told the dog to go back for ___(5)___. When the dog ___(6)___ there, he tried to take both caps together in his mouth at once. It was very difficult. Then the dog noticed that one of the caps was smaller than ___(7)___. He put the smaller cap in the larger one, got it down ___(8)___ his foot and then he could ___(9)___ both caps at the same time. You see ___(10)___ clever the dog was.