He (to be) married? short answer (yes)
Is he married? Yes, he is.
I (not to be) a teacher. I (to be) a student.
am not/ 'm not....am
Europe and Africa (to be) continents.
are
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
This exercise (not to be) difficult.
is not/isn't
Lemons (to be) sweet? short answer (no)
Are lemons sweet? No, they are not. / No, they aren't.
It (to be) cold today.
is
Amy (to be) 5 years old?
Is Amy 5 years old?
Hockey (not to be) a slow game. It (to be) fast.
is not/isn't....is
An elephant (to be) a big animal.
is
Mice (not to be) big animals.
are not/aren't
Your classmates (to be) friendly? Short answer (yes)
Are your classmates friendly? Yes, they are.
Washington (to be) in America.
is
You (to be) interested in football? short answer (yes)
Are you interested in football? Yes, I am.
She (to be) very tired.
is