My name is Bill. I come from China. Now I am in Grade Eight. I have to get up very early in the morning , because my home is very far from the school. After breakfast, I take the subway to get to school. This term, I have a new subject . It's physics. I like it best. I think it is very easy and interesting. I have physics classes on Mondays, Wednesdays and Fridays. They are all my favorite days. Mr.White is my physics teacher. He is now forty years old . Now he is in front of the blackboard. What's he doing now ? "Where is my physics book ? I am looking for it ." My deskmate , Mike , stands up and says , "Sir , it's in your hand ." We all laugh . Mr. White is very forgetful . ,. What is Mr. White doing in front of the blackboard ?
He is teaching the students physics. He is asking Mike a question. He is looking for his book. He is writing on the blackboard.