sport class

There is a test in sport class before this weeks. Teachers ask our to run 3000m and before 20 min.Uncomfortable,the time is about three o'clock afternoon.The temperature is 30degree centigrade,but I just did my best.But when I run about 1500m,my belly had a pain.After the unexpected,I run and walk on runway.Finally,I was pass that test at 19:37. Just a luck.