2.12 My father is a worker.Is my father a worker.Yes,he is.No,he isn't.
He is an engineer now.Is he an engineer now?Yes,he is.No,he isn't.
These children are little.Are these children a little.Yes,they are.No,they aren't.
You are my best friend.Are you my best friend?Yes,you are.No,you aren't.
Your daughter is a pupil.Is your daughter a pupil?Yes,she is.No,she isn't.
I'm a student.Am I a student?Yes,I am.No,I am not.
They are good boys.Are they good boys?Yes,they are.No,they aren't.
Our mother is a teacher.Is our mother a teacher.Yes,she is.No,she isn't