Give the opposites Important- Popular- Active- Pleasant- Necessary- Formal- Natural- Different- Done-
Opposites: (просто добавлять в начале in/un) 1. Important - unimportant 2. Popular - unpopular 3. Active - inactive 4. Pleasant - unpleasant 5. Necessary - unnecessary 6. Formal - informal 7. Natural - unnatural 8. Different - indifferent 9. Done - undone