TO BE (+)
He is happy.
(Yana,be) a nurse?
Is Yana a nurse?
Karina (not be) eighteen.
Karina isn't eighteen.
They (be) friends.
They are friends.
(your mum, be) a police officer?
Is your mum a police officer?
My name (not be) Alan.
My name isn't Alan.
Karina and Ann (be) students.
Karina and Ann are students.
(you, be) Polish?
Are you Russian?
It (not be) my rubber.
It isn't my rubber.
This pencil case (be) new.
This pencil case is new.
(it,be) your dog?
Is it your dog?
I (be not) English.
I'm not English.
Mary and I (be) at school.
Mary and I are at school.
(I,be) from Great Britain?
Am I from Great Britain?
Yana and I (not be) waiters.
Yana and I aren't waiters.