Here are the corrected sentences:
- The sun set over the horizon, casting a beautiful orange glow across the sky.
- She carefully wrapped the present in colorful paper and tied it with a ribbon.
- He studied all night for the exam, hoping to get a good grade.
- They decided to take a different route to avoid the heavy traffic.
- The flowers in the garden were blooming beautifully, attracting many bees and butterflies.