1. It's Dan Brown's "Origin"2. It's popular among people of all ages3. Children enjoy playing active games at the age of three4. No, because they're free to do that, it's normal5. I can tell them if they are too noisy6. I'm good at basketball7. Yes, I am, because languages are my hobby8. Your memory is not full of terabytes of information yet, so it's possible to put new words and grammar rules into your mind9. I usually ask my friend to help me