8. Water 9. Harry sometimes 10. Betty 11. My students rarely 12. It rarely 13. I never at 0°C. (freeze) tennis at the club. (play) the flute now. She's rehearsing! (play) a word in English! (say) in summer. (rain) before 7.30. (wake up) 14. Susan usually (do) 15. The Earth 16. They her homework in her bedroom. around the Sun. (go) difficulties at the moment. (have) garbage on the ground in Medellín. 17. We rarely (see) 18. The phone always shower. (ring / take) 19. John 20. David when I an e-mail at the moment. (write) his hair every month. (cut) a​