英語謎語

以下是一些英語謎語：

1. What letter is an island?

2. What letter is a question?

3. What letter is a radio?

4. What letter is a bridge?

5. What letter is a watch?

6. What sound does a doorbell make?

7. What sound does a telephone make?

8. What sound does a steam engine make?

9. What sound does a bicycle make?

10. What sound does a motorcycle make?

希望這些謎語能給你帶來一些樂趣！