21.  Maybe no body can answer this question.

22.  In some parts of Britain, one preson in ten, by the age of thirty, has no teeth left!

23.  today is sunny ,the sky is very blue, and no wind .

24.  Mother had no ideas but press then into powder and let me drink it out .

25.  No one good climber with strong heats should try Popo .

26.  No body is hurt and killed.

27.  The streets I have been in the No.4 Middle School or almost five years, the streets around the school have no change, too.

28.  Though it is difficult for me to do that, and I have no confidence for it, I can try my best to do it well.

29.  In the day, no any special ceremony, just a simple greeting .

30.  No body wants to be a deforming person.