唔該！！！！！！！！！！！！！！

First of all. We have assigned 5 groups. Pile the sand match. All classmates are very diligent. After 2 hours. Everybody has finished the works. Everybody's works are all very characteristic. And that group of mine takes the 1st place. There is sense of achievement very much.
By lunch time. I and team member oxygen have offered one's own lunch. Share with others. Very happy.