1. What is clean when it is black and dirty when it is white?

　　2. What has a round face and two thin hands, one hand short, one hand long?

　　3. What is big and bright during the day and we can’t see it at night?

　　4. I am small. I can fly. I like singing in the sky. What am I?

　　5. Which letter is a drink? 6. Which letter is around an island?

　　7. Which letter is an animal?

　　8. Which letter is a kind of vegetable?

　　9. Which is the longest English word? Why?

　　10. Which letter is a question?