1. (2017八下·舒城期中) 根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。

1. （1） My father usually r (放松) himself by reading newspapers.
3. （2） The UK is an old E (欧洲) country. It is also an island country.
5. （3） Protecting the e (环境) is our duty.
7. （4） Now c (交流) with different kinds of teenagers is not so difficult as you think.
9. （5） It has been five years since he l (离开) home.