根据句意及汉语提示完成句子。

1. I've ________ (已经) read the book twice.

2. In the past, my grandparents couldn't afford an ________ (教育) for my father.

3. ________ (尽管) life is hard for her, she is still happy.

4. They are ________ (考虑) buying a new house.

5. China has ________ (发展) rapidly in recent years.