1. She gave him an ultimatum: either quit gambling or she would leave him.
2. The boss issued an ultimatum to the employees: meet the deadline or face consequences.
3. My parents gave me an ultimatum: either improve my grades or lose privileges.
4. The government issued an ultimatum to the rebels: surrender or face military action.
5. The coach gave the team an ultimatum: win the next game or face being benched.
6. The landlord issued an ultimatum to the tenants: pay rent on time or face eviction.
7. The kidnappers gave a chilling ultimatum to the victim's family: pay the ransom or never see their loved one again.
8. The union presented the company with an ultimatum: increase wages or face a strike.
9. The teacher gave the students an ultimatum: turn in their assignments by Friday or receive a failing grade.
10. The criminal gave the police an ultimatum: release his accomplice or he would harm a hostage.