make sentences with the word sustain

1. He did his best to sustain his energy levels during the marathon.

2. The community is working together to sustain a clean and healthy environment.
3. Proper nutrition is necessary to sustain good health.
4. We need to find ways to sustain economic growth while protecting the environment.
5. The company implemented sustainable practices to sustain its business operations.
6. The government introduced policies to sustain job creation and economic stability.
7. Learning to sustain focus is essential for success in school and work.
8. Our goal is to sustain our reputation as the leading provider of quality products.
9. It is important to sustain relationships by regularly spending time together.
10. The athletes had to sustain their enthusiasm and motivation throughout the competition.