8. I'm learning English in order to read books in English
9. My father drove carefully so as not to cause accidents
10. Please close the windows so that nobody can look at my house
11. The notice are written in several languages so that everyone may understand them
12. She needs a job in order to support her old parents
13. My sister wore warm clothes so as not to get cold
14. He's studying hard in order to heep pace with his classmates
15. There men were talking in whispers so that noone can hear their conversation