4 .
根据课文内容填空The four countries that 1 to the United Kingdom work together in some areas. They use the same flag, 2 as the Union Jack, as well 3 share the same currency and military 4 . However, they also have some differences. For example, England, Wales, Scotland, and Northern Ireland all have different education systems and legal systems. They also have their own 5 , like their own national days and national dishes. And they even have their own football teams for competitions like the World Cup!