Here are the sentences rewritten using adverbs:

1. She dresses elegantly.
2. He drives dangerously.
3. He swims well.
4. She drives poorly.
5. They work hard.
6. He gave a very stupid answer (remains the same as "stupid" is already an adverb).
7. She teaches effectively.
8. They write neatly.
9. The children play noisily.
10. She dances happily.