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| 1. Helpful | 7. Dissatisfied | 13. Modernize |
|---|
| 2. Education | 8. Development | 14. Scientist |
| 3. Dangerous | 9. Useless | 15. Decision |
| 4. Carefully | 10. Impolitely | 16. Irregular |
| 5. Impossible | 11. Unemployment | 17. Irresponsible |
| 6. Friendship | 12. Unhappiness | 18. Happily |
Before you leave this lesson
- Explain the main rule in your own words.
- Redo the examples without looking at the correction.
- Write one new example using the same pattern.
- Move to the previous or next lesson and connect the two rules.