Model:

It is reported that they have collected samples of deadly viruses. They are reported to have collected samples of deadly viruses.

1. It is said that this book has been lost. 2. It is believed that he has a big potential as a scientist. 3. It is known that causative agents of this disease have been discovered. 4. It is considered that this Academy is the best in the country. 5. It is expected that many students will attend the conference. 6. It is considered that the results of the experiment are satisfactory. 7. It is expected that they will come to Moscow.8. It is believed that the heart transplant operation has been successful. 8. It is well-known that doctors need effective preventive measures to eliminate virus diseases. 9. It is believed that cardiovascular disease is one of the most important medical problems.

Exercise 30. Read and translate the following sentences.

He is supposed to discharge the patient from the hospital.

He is supposed to have discharged the patient from the hospital.

He is supposed to be discharged from the hospital.

He is supposed to have been discharged from the hospital.

Exercise 31. Open the brackets using the correct form of the Infinitive.

1. He seems (to read) since morning. 2. He appears (to know) English well. 3. They are supposed (to work) on this problem for the last two months. 4. They seem (to discuss) this problem right now. I can hear their voices. 5. The doctor is supposed (to prescribe) you the right medicine. 6. He seems (to satisfy) with the results of the treatment 7. New medical equipment is believed (to help) scientists solve many important problems. 8. She is expected (to operate) on today. 9. Two other diseases, besides diabetes, appear (to associate) with insulin reception defects. 10. Immunoglobulin proteins are stated (to produce) by the body.