In order not to neglect the beginners in Serbian, here's  a video lesson about Jeremija without my voice. If you are a real beginner, do watch the version with slow pronunciation before doing the following tasks:

• Say the sentences based on the facts before the answers show up
• If that's difficult, try simply to read the answers (help)
• If that's too easy, try to ask the appropriate questions for Jeremija's answers