根据句意及首字母或汉语提示完成单词。 1. She lives a_____in a small village, but she doesn't feel lonely. 2. People will be a_____to visit Mars in the future. 3. I will _____(或许)go skating and swimming every day. 4. Yang Zhenning is a famous_____(科学家). 5. I think_____(预测)the future can be difficult.