1. One boy. Two .
2. One man. Two .
3. One duck. Two .
4. One box. Two .
5. One chair. Two .
6. One bus. Two .
7. Once bench. Two .
8. One Pencil. Two .
9. One Foot. Two .
10. One Tooth. Two .
11. One goose. Two .
12. One eye. Two .
13. One hand. Two .
14. One dog. Two .
15. One bus. Two .