【正文】
no wings. I cry, but I have no eyes. 28. How many letters are in the alphabet? 29. I am always with you. Sometimes behind you, sometimes before you, sometimes by your side, but you can’t see me in the dark. 30. What table is in the field? 31. What table can tell you what to do? changes a pear into a pearl? 33. What letter makes a road broad? 34. When do 2 and 2 make more than 4? 35. I have cities but no houses, forests but no trees, rivers without water. What am I? 36. What kind of dog doesn39?! ?. 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. Whic