21.  Many of them become very fat and some have bad teeth.

22.  Mrs Jill Welfare, My name is Li Hua, I am studying in Number.1 Middle School of Beijing in China, and I am in Grade Three.

23.  I want to know which one is right and why.

24.  The second question further and farther these two words' means and their useing are the same or have something different .

25.  Now there are thirty-six classes, one thousand eight hundred students, and more than two hundred teachers in it.

26.  They are strict with the students, and the students respect them.

27.  As we all knew, the great flood had broken out in Conghua and Huadu.

28.  This week I and Liu Hui to write .

29.  This Friday and Saturday we will have the sports meeting.

30.  I can write it to praise the student who has attended it, and the students who has to appearance .