21. Because until we convince Congress 22. Disable the next button until time limit expires 23. A people who lived free in the forest until a generation ago, 24. Remember password until you log out 25. Remember password until you logout 26. Practise multiplication, until all the cards are gone. 27. People didn't know what caused it until the early 1900s, 28. until you've written your words for the day.29. until I had Mr. Carlock's science class.30. Until we figure out what it is, we'll just call it this.
