It's unclear if the Life in the UK test is designed to test whether somebody has already integrated, or to encourage it.
A guide from an EU law expert for British citizens who will be elsewhere in the EU on a no-deal Brexit day.
What the law says about stripping people of their British citizenship.
Becoming British can be a confusing, expensive and lonely process.
Now the UK and the EU have made their opening offers on citizens' rights, an EU law expert examines what this means for UK nationals living abroad.
Different EU countries have different rules about who can have dual nationality.
Ten years ago as a BBC special correspondent Kurt Barling broke the story of a teenager who had been abused as a domestic servant. Now he reports on what happened next.