Употребите сокращённую форму глаголов.

1. I am not cold. – I'm not cold.
2. It is not hot. – It isn't hot.
3. We are late. – We're late.
4. He is not their friend. – He isn't their friend.
5. They are not on holiday. – They aren't on holiday.
6. I am on holiday. – I'm on holiday.
7. I am not her sister. – I'm not her sister.