1. ___________________ to organize or do something

2. ___________________ decided before

3. ___________________ not obvious or easy to notice

4. ___________________ to make it more difficult for someone to do something

5. ___________________ In a sudden way, without planning or thinking carefully

6. ___________________ arranged in an organized way

7. ___________________ necessary

8. ___________________ obvious to everyone and easy to see or understand

9. ___________________ to control an activity or process, especially by using rules

10. ___________________ as a result

11. ___________________ involving a lot of different but connected parts in a way that is difficult to understand