根据各句句意及汉语提示写出完整的英语单词（每空限填一词）．
He's a nice boy． He always talks to others （礼貌地）．
从这里走到白云山顶大约要花一小时．
about an hour to the top of the Baiyun Mountain from here．
学好英语，以便我们能够与世界分享中国故事．
Learn English well we can share Chinese stories with the world．
在我们的帮助下，小鸟终于回巢了．
， the baby bird got back to its nest in the end．
凯特决定去社区工作，而不去度假．
Instead of ，Kate decided to work in the community．
The study group discussed the problem again and again， and they f worked it out．