Here are 10 sentences using oxymorons:
1. The deafening silence in the room was almost unbearable.
2. He was a living dead man, lost in his grief.
3. The pretty ugly sweater made her stand out from the crowd.
4. The organized chaos of the art studio was inspiring.
5. She had a bitter sweet feeling about leaving her hometown.
6. The working holiday gave him a chance to catch up on his work.
7. The jumbo shrimp was a popular appetizer.
8. The clearly confused student asked for clarification.
9. The old news about the scandal was still making headlines.
10. The poor rich man felt deeply lonely despite his wealth.