Iii. open the brackets; use the passive voice.
1. the letter about the result of experiment (to send) yes
terday.
2. various medical tests (to perform) already by the stu
dents.
3. in this occupation most workers (to call) technicians.

4. samples for laboratory examinations (to prepare) at
this moment.
5. newly admitted animals (to vaccinate) usually by vet
erinary technologists.
6. this problem not (to discuss) in the class.
7. yesterday an ill cat (to examine) by a veterinarian.
8. special attention (to pay) to the transplantation of
organs.
9. the experiment (to finish) by the scientists tomorrow.
10. the veterinarians (to train) at the veterinary depart
ment next year