用am is are造句各造一个 再改为一般疑问句做出肯否回答

I am a teacher.改为一般疑问句：Are you a teacher? 肯定回答：Yes ，I am 否定回答：No ,I'm not.
He is a teacher.改为一般疑问句：Is he a teacher ? 肯定回答：Yes ，he is 否定回答：No ,he isn't.
They are boys.改为一般疑问句：Are they boys?肯定回答：Yes ，they are.否定回答：No ,they aren't
不明白的可以追问。

I am from China!
He is a student.
They are green.
Are you from China?
Yes,I am./No,I am not.

i'm a student, he is a student. they are students. am i a student? is he a student? are they students?

iama student

直接跳过。