My little son Allan is 8 years old. He likes playing basketball volleyball., pingpong and other games. On Sundays, I can’t see him at home, but easily find him in the open air. He always plays basketball or football with Jack, Mike , Tom and other his friends there. Last Monday, Allan finished homework after the first class in the afternoon , He played the ball again, the playground was wet since it rained hard the day before Monday. After some time his ball was dirty and his hands were dirty too.

It was a quarter to four and the last class began. Allan had no time to wash his hands and ran into his classroom. Miss King, his English teacher, told Allan to write some new words. Allan stood in front of the blackboard and started to write . Miss King saw his right hand was dirty. “ oh , dear” said the teacher, “ Your right hand is dirty. I’m sure it is the dirtiest in our class” “You are wrong, Miss King”. Said Allan, then he showed his left hand to her. And she found it is dirtier.