完形填空。

　　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 　　1　　 Tod．He 　　2　　 Tod and put it in a small boat．

　　He rowed(划)the boat to the 　　3　　 of a big river．Just as he 　　4　　 the poor animal into the river, the boat began to go down．　　5　　 the man and Tod 　　6　　 into the river．

　　Tod was able to swim, 　　7　　 Sam couldn't．The dog bit the rope(绳子)and broke it．It tried its best to swim to 　　8　　 Sam．The man was saved, so he was very thankful to the dog, and he didn't want to kill the dog 　　9　　．From then on, he gave the dog as 　　10　　 as it wanted．

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