Our head teacher is Miss Zheng.She is young is a beautiful woman, she was only 24 years old.She taught us biology.She taught us biology, we all like her, we like biology class.She has long black hair.She teaches us lessons must be straight waist.She is have cudgeled one's brains，in order that we can find a good job after.She always teaches us to safety first, learning second.She has a younger brother, is in Grade 7, but he is in class 10and I was in class 1.This is our teacher Zheng.