Решение:
Задание предполагает преобразование простых предложений в предложения с превосходной степенью прилагательного, добавляя фразу 'I've ever seen...'.
- That's a fast car. → It's the fastest car I've ever seen.
- Those are expensive rings. → Those are the most expensive rings I've ever seen.
- That's a small house. → That's the smallest house I've ever seen.
- That's a big plane. → That's the biggest plane I've ever seen.
- That's a tall building. → That's the tallest building I've ever seen.
- That's a long snake. → That's the longest snake I've ever seen.
- Those are nice flowers. → Those are the nicest flowers I've ever seen.
- That's a cheap watch. → That's the cheapest watch I've ever seen.
Ответ: 2. Those are the most expensive rings I've ever seen. 3. That's the smallest house I've ever seen. 4. That's the biggest plane I've ever seen. 5. That's the tallest building I've ever seen. 6. That's the longest snake I've ever seen. 7. Those are the nicest flowers I've ever seen. 8. That's the cheapest watch I've ever seen.