1. A: Is that your cola? B: No, it's not my cola. It's hers. My cola is in the fridge. 2. A: Whose car is this? B: It's ours. A: Your car? Wow! 3. A: Are these hot dogs Andrey and Nikolay's? B: No, they aren't Andrey and Nikolay's. Andrey and Nikolay's hot dogs are on that table. 4. A: Is that Katya's cat? B: No, it's not Katya's. It's my cat. Katya's cat is grey. It's hers.