Transform these sentences into Yes/No questions.

Przekształć zdania na pytania rozpoczynające się od wyrazu "czy"

1. I often play computer games.
2. She usually works at home.
3. Our teacher always come to classes on time.
4. We have English on Thursdays.
5. They build houses.
6. Your aunt and uncle usually forget my birthday.
7. We know a lot of English words.
8. Patricia spells English words very well.
9. We often walk in the park in the afternoon.
10. He comes home from work very late.
11. Their father sells second hand cars.
12. They cook dinner every Sunday.
13. Your sister wears trousers.
14. A new passport costs 100 zlotych in Poland.
15. His brother always tells the truth.