(She/to be) Italian? Yes, ...
Is she Italian? Yes, she is.
She (to be) very tired.
is
Lemons (to be) sweet? short answer (no)
Are lemons sweet? No, they are not. / No, they aren't.
Mice (not to be) big animals.
are not/aren't
He (to be) married? short answer (no)
Is he married? No, he isn't.
This exercise (not to be) difficult.
is not/isn't
Europe and Africa (to be) continents.
are
An elephant (to be) a big animal.
is
Teddy (to be) my best friend. You (not/to be) my friend anymore.
is; are not/aren't.
They (not to be) thirsty, they (to be) hungry.
are not/aren't....are
Mr and Mrs Jones (to be) teachers.
are
Dogs (to be) man's best friend.
are
You (to be) interested in football? short answer (yes)
Are you interested in football? Yes, I am.
I (not to be) a teacher. I (to be) a student.
am not/ 'm not....am
Your classmates (to be) friendly? Short answer (yes)
Are your classmates friendly? Yes, they are.
The teacher (to be) happy.
is
Washington (to be) in America.
is
It (to be) cold today.
is
Amy (to be) 5 years old?
Is Amy 5 years old?
(They/to be) from Egypt?
Are they....
I (to be) a fireman.
am
Hockey (not to be) a slow game. It (to be) fast.
is not/isn't....is