问题描述：
求写一篇An unforgettable lesson作文100字,大学水平
文中要有we，return to our car,a man ,annoyed,a notice,name and address,to lears a lesson
问题解答：
我来补答
I've had quite a lot of lessons in my school life.Among them the one given by an American young man is the most unforgettable.
It was on Tuesday morning in May.Our teacher told us all of a sudden that an American would give us an English lesson.Then in came a young man.He greeted us in English and then began his class.It was quite different from those we had before.During the whole class he taught us several
English songs,played games with us and helped us act out a dialogue.He neither taught us English grammar rules nor asked us to do lots of written exercises.He was not serious at all.He was always smiling at each of us.Happy time was always short.Before we knew it,the class was over.We took a photo with our American teacher in the classroom.
I will never forget his smile,his songs and everything he had done in his class.
