`
Are you a doctor?
Yes, I am .
No, I am not.
Are you doctors?
Yes ,we are.
No, we aren't.
Are you our teachers?
Yes, we are .
No, we aren't
`
Are you a doctor?
Yes, I am .
No, I am not.
Are you doctors?
Yes ,we are.
No, we aren't.
Are you our teachers?
Yes, we are .
No, we aren't