1. I study 2. We teach 3. He pays 4. Danielle flies 5. She never does 6. This girl always pushes 7. They want 8. David never mixes 9. The room is 10. I usually help 11. You still believe 12. My neighbor has 13. My sister speaks 14. Frank goes 15. Marta and Paul swim 16. John never leaves 17. Summer is hot 18. He misses 19. I like you 20. Stelia sings