Choose the adjective or the adverb:
1. If you work hard/hardly you can succeed.
2. Has she done good/well in her lessons?
3. They've come too late/lately to the theatre.
4. Alice speaks Spanish fluent/fluently.
5. Bob was bad/badly injured during the match.
6. Everyone thinks well/good of Boris.
7. The table has a smooth/smoothly surface.
8. The children were running quick/quickly.
9. Maria speaks perfect/perfectly English.
10. This music sounds too sad/sadly.

Если не сложно - объясните разницу.