Пошаговое решение:
- 1. The adjective is 'older'. The comparative form of 'old' is 'older'.
- 2. The adjective is 'shortest'. The superlative form of 'short' is 'shortest'.
- 3. The adjective is 'youngest'. The superlative form of 'young' is 'youngest'.
- 4. The adjective is 'younger'. The comparative form of 'young' is 'younger'.
- 5. The adjective is 'fittest'. The superlative form of 'fit' is 'fittest'.
Ответ: 1. OLDER, 2. SHORTEST, 3. YOUNGEST, 4. YOUNGER, 5. FITTEST