Решение:
- Our house isn't small. It's big.
- My car isn't fast. It's slow.
- Yulia's phone isn't cheap. It's expensive.
- His laptop isn't new. It's old.
- Tim's name isn't long. It's short.
- Their teacher isn't bad. She's good.
- My car isn't clean. It's dirty.
- My cat isn't ugly. It's beautiful.
- This exercise isn't easy. It's difficult.
Ответ: 1. big, 2. slow, 3. expensive, 4. old, 5. short, 6. good, 7. dirty, 8. beautiful, 9. difficult