31. He has read the book ,___________?

30. Your brother has lunch at school,_________?

29. Mr Green is unhappy,___________?

28. No one knows you here ,____________?

27. Some of the apples are bad ,___________?

26. Some of the water is not clean,___________?

25. Nothing is interesting,_______________?

24. Everything is all right, _____________?

23. Every is　 here ,___________?

22. Don't play on the road ,____________?