My Thoughts about American High schools

I was impressed by American high school.I went to Marina high school.It was a very big school.There are 2711 students.I was surprised that there was only a first floor and many students commute to the school.It was beyond my imagination.
My buddy's name was Andrew Ngo.He was very kind and cheerful.He introduced a lot of his friends to me.I thought that he had many friends because he was very cheerful.
Our presentation had succeeded.I was tensed for our presentation.I was afraid that I couldn't make myself understood to them in English.But they could understand my English.I thought that it was important to say things clearly.American high school's class was active.When I watched another group's presentation,American high school students were very active.I played tennis with my buddy,my friend,my friend's buddy in the six period.I didn't think that I would play tennis,so I enjoyed playing it.I felt that I could communicate with them to play it.
I wanted to talk more with my buddy.American people were positive and kind.They said "thank you"with a smile.I think that we should follow them.Because I learned many things in America,it was a very good experience.