Here are complete sentences using the given words:

1. Sarah sings more beautifully than her sister.
2. They smile more happily than before.
3. My sister cooks worse than I do.
4. The new villager adapts to changes more easily than the old one.
5. The restaurant serves food more quickly than its competitors.
6. The new combine harvester separates the rice more quickly than the old one.
7. The teacher speaks English more fluently than we do.
8. She handles customer complaints better than her co-workers.
9. The construction workers are using their machines more noisily than usual today.
10. Jim threw the ball farther than Peter in the previous match.