阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
There was once a young mouse living in a hole in the wall. One day the young mouse woke up from his sleep and looked out of the hole. As he looked out, a fantastic smell came to his nose. "Cheese!" the mouse said happily to himself. "I'll go and get it now and have it for breakfast."
But then he remembered his parents' words. His parents were very clever mice and often said to their son, "Always wait before you go for a piece of cheese."
So the young mouse waited quietly. Then he heard a quiet "Miaow" and he knew the cat was there. He stayed in the hole and said to himself, "I'm glad I listened to my parents and learned to wait."
The next day, he looked out again. He put his nose out of the hole and the beautiful smell of cheese came to his nose again. He could see the cheese. It was only a few centimeters away. But he sat and waited quietly. This time he did not hear any cat's noise. Instead he heard a very quiet "woof woof".
"It's a dog." He thought. "If the dog is there, the cat won't be there. The dog mustchasethe cat away. So I'm safe." The mouse ran out of the hole and started eating the cheese. He did not see the cat, which caught him and ate him.
When the cat finished her meal, she said to herself, "I'm glad I listened to my parents and learned a second language."
