21.  And one street which I usually pass to go to school is been repaired.

22.  There are two teaching buildings, one experiment building and one large playground in the school, the students can have physical training in the playground .

23.  One night, when Tim was sleeping in his bed, a fire near his house was broken out.

24.  when he was young man , he had to move on one country to another.

25.  The play's title is "who is the stronger " Miss Liu divided us four groups and let us act one character of the play.

26.  I learned short and once, and I worked as a typist in one school in my spare time.

27.  One night, Jack was asleep.

28.  One night, when Tom was sleeping, the house caught fire.

29.  because of the political reasons, e had to move from one country to another, so he must learn several foreign language , such as English, Russian....

30.  One evening Tom was sleeping in his bedroom.