Sure! Here are the correct forms of the verbs for your sentences:

9. Look! Jane **is playing** the guitar. Hurry up! The bus **is coming**.
10. I **do not talk**.
11. How often **does** she **go** fishing?
- She **goes** once a year.
12. **Are** your friends **students**?
- Yes, they **are**.
13. **Are** the children **playing** in the park at the moment?
- No, they aren't. They **are learning** to play the piano.
14. **Do** you **go** to school on Sundays? - Yes, I do.
15. My mother **cooks** a meal now. She **cooks** every day.
16. What **is** your mother **doing** at this time?
17. She **makes** a dress.
18. **Does** she often **go** to the cinema every weekend?
19. I don't know. But she always **goes** to church on Sundays.
20. The students **are not** in class at present.

Feel free to ask if you need anything else!