27. I　 like making a friend with peasants.

26. There is only one people in the office.

25. This is Tom's,the doctor's hat.

24. He is mother's-in-lw brother.

23. Men's hands are more useful than bird's wings.

22. We have a lot of works to do today.

21. Are these seats yours?No,they are Tom and John's.

20. We visited Allan's and David'sroom yesterday.

19. Linda is wearing a new trouser.

18. How many tooths does he have?