Sam had a dog. Its name was Tod. It was very helpful, but it ate too much. So he didn't like it. He wanted to kill Tod. He ___21___ Tod and put it in a small boat. He rowed the boat to the ___22___ of a big river. Just as he threw the poor animal into the river, the boat began to go down. ___23___ the man and Tod fell into the river. Tod was able to swim, but Sam couldn't. The dog bit the rope and broke it. It tried its best to swim to ___24___ Sam. The man was saved, so he was very thankful to the dog, he didn't want to kill the dog any more. From then on, he gave the dog as ___25___ as it wanted.