Explicație:
4a) 1.mans, womans, childrens
2. Oportunities
3. Series
4. Leafs
5. Glasses, knifes, forks
6. Armies
7. Species
8. Peoples, arms
4b) 1.phenomen
2.are
3.condition
4. Have
5. is
6. Resources
7. Some
8. Crisis
4c) 1. And
2. is
3. Are
4. Have
5.?
6. Are
