1. Keep your breath to cool your porridge. 

2. It was a cool day with fitful sunshine.

3. The February air was soft, cool, and inviting.

4. The grass was cool and pleasant underfoot.

5. I'm going for a swim to cool down.

6. No man cool call back yesterday.

7. The forest looked cool and shady.

8. Strawberries grow best in a cool, moist climate.

9. She let the gentle breeze cool her face.

10. Skim the jam and let it cool.

11. It is rather cool, not to say cold.

12. Her skin felt smooth and cool.

13. Put aside all Facing the misunderstanding to keep cool.

14. Don't get excited about the exam; keep cool.

15. Let's sit in the shade and keep cool.

16. Her expression was cool(sentencedict.com), almost impassive.

17. Store onions in a cool dry place.

18. We dived into the river to cool off.

19. The room was nice and cool.

20. Stop trying to be cool.

21. He refreshed himself with a cool shower.

22. A cool breeze brushed his face, ruffling his hair.

23. A cool drink refreshed me after my long walk.

24. I could do with a nice cool drink.

24. Sentencedict.com is a online sentence dictionary, on which you can find nice sentences for a large number of words.

25. It was a lovely cool evening.

26. It's cool and shady under the tree.

27. The decor has a cool sophistication.

28. Her garden was a cool pleasant place to sit.

29. He went for a swim to cool off.

30. She swam out into the cool water.