21.  They like to eat butter, cream, chocolate, sweet and so on, which contain a lot of sugar.

22.  I want to ask you two questions.

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

24.  This week I want to write the "Lei Feng" composition.

25.  This week I and Liu Hui to write .

26.  I think , What can I to write, then , I had an idea.

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

28.  Then I began to write, and has writed it for half and hour.

29.  I ran with the girls of our class, when I ran arround the second ring , I begun to feel tied, but there was three left, I did not give up, when I ran arround the forth ring, I felt very tied, and my leg was very heavy, then I said to myself , there's only one left, I must insist, must go to the end, I encourage myself to the end .

30.  .I can ran insist to the end, I felt so happy.