Put the verb in brackets into the present simple or present continuous.

Привет! Давай разберемся с упражнением. Напоминаю: Present Simple используем для постоянных действий или фактов, а Present Continuous — для действий, происходящих прямо сейчас. 1. My sister works in a hospital. She's a nurse. (work) 2. Look! The dog is running in the garden. (run) 3. Why are you wearing your coat? It's cold today. (not / wear) 4. Be quiet! The baby is sleeping. (sleep) 5. Two plus two makes four. (make) 6. Are you talking on the phone at the moment? (talk) 7. She doesn't speak English very well. (not speak) 8. I am trying to understand that grammar rule right now. (not / try) 9. Why is he studying in the library today? (study) 10. Dogs walk on four legs. (walk) 11. The children are playing football in the garden now. (play) 12. It rains a lot in London. (rain) 13. They are eating dinner at the moment. (eat) 14. Listen! Someone is knocking at the door. (knock) 15. I can't come to the phone. I am taking a shower. (take) 16. Look! It isn't raining outside anymore. (not / rain) 17. Water boils at 100 degrees Celsius. (boil) 18. The sun rises in the east. (rise) 19. They are painting their house at the moment. (paint) 20. We are preparing for the party this weekend. (prepare)