1) 1 - It is warm today / It isn't warm today. 2 - My hands are cold / My hands aren't cold. 3 - Canada is a very big country / Canada isn't a very big country. 4 - Cats are big animals / Cats aren't big animals. 5 - I am interested in football / I am not interested in football. 6 - She is hungry / She isn't hungry.
2) 1 - Is your mother at home? 2 - Are your parents at home? 3 - Are you interested in art? 4 - Are these hotels expensive?
3) 1 - What is your name? 2 - Are you British? 3 - Where are you from? 4 - How old are you? 5 - Are you a pupil?
4) 1 - She is very clever. She speaks four languages. 2 - She is a teacher. She teaches Maths to young children.