One possible version:
We are very glad that Li Hua has made great progress. He used to throw litter about, and
fight with other students a lot. After class, he would go to the Internet bar to play computer games.
After this program, Li Hua has changed a lot. He gets on well with others. He also takes good care
of the environment. Now he takes part in all kinds of activities, too. We are all happy to see he has
given up his bad habits.