11. They do one thing at a time. They do it extremely well. 12. Press keyboard shortcuts one key at a time (Sticky Keys) 13. They may drink as much as 135 litres at a time . 14. Try to exercise two or three times a week for about 20-30 minutes at a time . 15. Only one option can be given at a time 16. Usually one young is born at a time . 17. You cannot assign more than one custom icon at a time. 18. You cannot assign more than one custom icon at a time! 19. It was at a time when investment was coming in, 20. Try to exercise two or three times a week for about 20-30 minutes at a time.
