作業(yè)精靈老師示例：
1. There was a tiger and a mouse in the forest. One day, the tiger was sleeping.
The mouse walked by and woke the tiger up.
2. Tiger: l'm hungry. I'm going to eat you!
Mouse: Please don't eat me. I can help you some day. Let's be friends.
Tiger: Ha! Ha! That's funny. You're so small and weak. But you can go.
3. Tiger: How can I get out?
Mouse: Mr Tiger, don't be sad. Let me help you.
Tiger: Thank you, my dear friend.
