Краткое пояснение: Нужно образовать сравнительную степень прилагательных.
- Elephants are (fat) than giraffes. - fatter
- Cats are (nice) than lizards. - nicer
- Dolphins are (clever) than whales. - cleverer
- Giraffes are (thin) than hippos. - thinner
- It's (hot) in summer than in autumn - hotter
Ответ: nicer, cleverer, thinner, hotter