12. When Sandra found the letter, someone (already/open) ______________ it. 13. When John and I (get) _________ to the theatre, the movie (already/start) ___________ 14. Their new house (finish) ____________ yet. 15. The robbers (arrest) ______________ as soon as they left the bank. 16. We can’t go along here because the road (repair) __________________. 17. The story I’ve just read (write) _______________ by Agatha Christie. 18. Today, many serious childhood diseases can (prevent) __________by early immunization. 19. The passage (read) ____________ out loud. 20. The parcel (sent) ____________ to him before his birthday. 21. A decision (not make)_______________ until the next morning.

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12. have already opened

13. got/have already started

14. have finished

15. were arrested

16. is being repaired

17. was written

18. be prevented

19. has been read

20. will be sent

21. won't be made

12. When Sandra found the letter, someone already opening it.

13. When John and I got to the theatre, the already starting movie 

14. Their new house finishes yet.

15. The robbers arrested as soon as they left the bank.

16. We can’t go along here because the road repaired.

17. The story I’ve just read had written by Agatha Christie.

18. Today, many serious childhood diseases can prevention by early immunization.

19. The passage reads out loud.

20. The parcel sent to him before his birthday.

21. A decision won't make until the next morning.