I am a student in a college的句式结构是怎样

I am a student in class 1 I am a student h_____ in a middle school. I am a student是什么意思 i am being a student. i am a student in beijing yucai junior haigh school i am a student in high school是什么意思 I am a student in NO.1Middle I am a student.对还是I am student. I am ( ) student A:a B:an I am a student （） a school. I am proud of _________ in New China.A.to be a student B.be a studentC.being a student D.am a student l am a student in class three I am a student.改为一般疑问句 i am a student.改成疑问句 I am a student是什么时态 i am a student 什么时态? I am a student 做一般疑问句 I am good a student I am a good student 哪个对 理由I am good a student I am a good student 哪个对 理由