On Thursday 25 people became American citizens at a ceremony in Hyannis.
The ceremony is something like a graduation, the final step in the often long and complicated process of becoming a citizen.
Before they graduate, aspiring citizens have to pass a civics test.
The questions are pretty basic. But really, could you pass the test?
Reporter Karen Duffin took to the field to ask citizens on Cape Cod a few of the questions. You can listen to the results above.