用所给词的正确形式填空
Children are always ________ about everything they see and hear. They will ask all kinds of questions ________. To meet their ________, we’d better answer them.(curiosity)
David has a ________body. He has the ________ to do this hard work. We had better ________ the relationship between us.(strength)
This new railway ________ this area in many ways. It is ________ to the people living in this area. For the ________ of more people, we should build more railways.(benefit)
The illness had left her feeling tired and ________.(weakness)
When he first learned to skate, he didn’t know how to ________ himself and tried to keep himself ________ while skating.(balance)