Now i am in Class 6,_3_,No 5 middle School.I have a sisther.

Now i am in Class 6,_3_,No 5 middle School.I have a sisther. I am in No.6 Middle School.I am in the No.6 Middle School.这两 I am in No.5 Middle School与I am at No.5 Middle School这两种表达都正 i am in class two, grade one ——no.8 middle school 横杠上填什么? I am in Class 1 Grade 2 of NO.1 middle school.这句话对吗? I am a middle school student now.I want to go to college in I am 16 and Istudy in NO.1 middle school I am a middle school I am a student of NO.3 middle school. I am No.5 Middle School's student I am a student h_____ in a middle school. I am a student h________ in a middle school.