Choose a correct variant:

1. Listen, you must _____ your parents about it immediately.
   tell
   to tell
   

2. No, I ______ do it tomorrow.
   mustn’t
   don’t must
   

3. She must ______ it.
   remembers
   remember
   to remember
   

4. ______ study English every day?
   Do me must
   Must we
   

5. I ______ get up early every morning.
   haven't to
   don’t have to
   

6. She ______ look after her little sister.
   has to
   have to
   haves to
   

7. Who ______ there first?
   musts go
   must goes
   must go
   must to go
   

8. ______ finish this work today?
   Have we to
   Do we have to
   

9. They mustn’t say such things, ______ ?
   must they
   do they
   

10. People mustn’t ______ lessons of history.
    forget
    to forget
    

11. The children ______ go to bed in time.
    is to
    are to
    

12. Peter and Mike ______ work overtime this month.
    have to
    has to
    

13. She ______ never let them hurt her feelings.
    mustn’t
    must
    

14. I ______ see my doctor tomorrow.
    will must
    will must to
    must
    

15. He said that they ______ come at once.
    musted
    must
    

16. It ______ be late. Let’s go home.
    have to
    must
    is to
    musts
    

17. The workers have to stay here all day long, ______?
    haven't they
    don’t they
    

18. Must I come here on weekends? – Yes, ______.
    you do
    you must
    

19. He ______ see me in this situation.
    doesn’t must
    mustn’t
    

20. You ______ me with the task.
    must to help
    must help