Exercise 2. Put the predicate in the appropriate Tense, paying attention to its Voice. 1. The animals (examine) by the students every day. 2. The students (examine) the animal

1. The animals are examined by the students every day. 2. The students examine the animals every day. 3. This cow was treated by our veterinarian last week. 4. Our veterinarian treated this cow last week. 5. Penicillin injections will be made by the veterinarian tomorrow. 6. The veterinarian will make penicillin injections tomorrow. 7. The students will treat sick animals next year. 8. Sick animals will be treated by the students next year. 9. Infectious diseases are caused by microbes. 10. Microbes cause infectious diseases. 11. These animals were operated on by our veterinarian last week.* 12. Our veterinarian operate on these animals last week.* 13. This disease is caused by a virus. 14. Viruses cause many diseases. 15. The sick calves will be isolated by the dairy men tomorrow. 16. The dairy men will isolate the sick calves tomorrow.