Correct mistake
I is a shop-assistant.
am
is/my son/hungry.
My son is hungry.
You are happy.
Are you happy?
You are very sad?
Are you very sad?
happy/are/You /not
You are not happy.
I am a president.
Are you a president?
You isn't drivers.
aren't
is /Susan/my sister.
Susan is my sister.
The dog is good.
Is the dog good?
I is 28.
I am 28.
are / a teacher / you
You are a doctor.
Yes, I'm from Hungary.
Are you from Hungary?
I amn't hungry.
I'm not hungry.
big/is/the dog/.
The dog is big.
It is a cat, not a dog.
Is it a cat or a dog?