1. were made
2. had been received
3. have just been introduced
4. will be taken; will be brought back
5. is being sold
6. were looked through; was found
7. Has this mountain been climbed before?
8. is watched
9. was stolen
10. have been delivered
11. have been arrested
12. is spoken
13. was elected
14. When will the results of the competition be announced?
15. was still being repaired
16. can't be reached