She is at school. Gina's family photo is nice. I'm an English teacher. He is my Chinese teacher. Tom and Mary are my classmates.
解题思路： 见下
解题过程：
She is at school.
She isn’t at school.
Is she at school?
Yes, she is.
Gina's family photo is nice.
Gina's family photo isn’t nice.
Is Gina's family photo nice?
No, it isn’t.
I'm an English teacher.
I'm not an English teacher.
Are you an English teacher?
No, I am not.
He is my Chinese teacher.
He isn’t my Chinese teacher.
Is he your Chinese teacher?
Yes, he is.
Tom and Mary are my classmates.
Tom and Mary aren’t my classmates.
Are Tom and Mary your classmates?
No, they aren’t.
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最终答案：略
