Final answer:
To substitute the word 'nice' with better adjectives, you can use 'beautiful' for a day, 'kind' for a girl, 'delicious' for a cup of tea, 'fascinating' for a book, 'gentle' for a man, and 'stylish' for a hat.
Step-by-step explanation:
1. A beautiful day:
2. A kind girl:
3. A delicious cup of tea:
4. A fascinating book:
5. A gentle man:
6. A stylish hat:
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