根据所给汉语提示，写出空缺处单词正确形式。
1. Can he _____ (募集) enough money to go to the college?
2. It is _____ (重要的) to clean the classroom every day.
3. He is very _____ (贫穷的), so he can't send his children to go to school.
4. There were many poor families in the_____ (农村地区) in 2000.
5. His mother is _____ (生病的), so he have to look after her at home.