根据短文理解, 从A、B、C、D四个选项中选择最佳答案填空。
A fox once said to a cat, "I have a whole bag of tricks(诡计). I know 1 than a hundred different ways of 2away from my enemies--dogs." "That's great," said the cat. "As for(至于) me, I have only one trick, but it usually works. Will you please3 me some of yours?", "Well, if I am not busy some day, I'll teach you one or two easier ones. "
Just at that moment they heard something 4. That was a dog. The cat climbed5 a tree quickly. "This is my only trick," she called down to the fox. "Which trick are you going to6 , Mr Fox?" The fox sat there. He used his head 7 one of his many good ways.
The dog came nearer. The fox thought and 8 . At last he found a way to run. Running away was 9 best way. But that was too late. Before he started 10, the dog came to him. That was the end of the fox.