1. My father [is] a worker, he [is] at work.

2. What language are you [ studying] now?

3. Tell me, what are they [ talking] about?

4. She normally [does not have] breakfast.

5. What has happened? Why has he stopped?

6. Marie is busy. She [is knitting] a sweater for her dog.

7. Jimmy, who finally [has found] a new job, [is giving] a big party.

8. She [has been doing] her homework since morning.

9. I [have been working] already at my essay for 4 hours.

10. I [have known] her since my childhood.

11. The boy’s birthday is on December 31, that's why he gets a lot of gifts.

12. At the moment I am reading Gogol.

13. She still has not called me.

14. While mom is cooking, I clean the room.

15. The plane arrives at the airport at 22:00.

16. I have come back home.

17. My friend does not wash his hands before eating.

18. They have been catching fish for 6 hours.

19. Next weekend we are going to the country.