Ответ: 1. expensive, 2. coldest, 5. more, 6. tidier, 7. worst.
Краткое пояснение: Нахождение и исправление ошибки в каждом предложении.
- Her new phone is expensive than mine. (expensive - правильная форма)
- Winter is the coldest season here (coldest - правильная форма)
- This cake is more delicious than that one. (most заменяется на more)
- My room is tidier than yours. (tidyier заменяется на tidier)
- That was the worst movie ever! (most убирается)
Ответ: 1. expensive, 2. coldest, 5. more, 6. tidier, 7. worst.