Exercise 12. Put the verbs in brackets in the appropriate tense: 1. Whom … the doctor … at the hospital every day? (treat)
2. What … you … now? (study)
3. What … the surgeon already …? (transfuse)
4. What … the surgeon … for two hours? (perform)
5. What … the lecturer … yesterday at 3 o’clock? (report on)
6. What … you … to do before you saw me? (decide)
7. What … the nurse … for an hour before the surgeon began the operation? (sterilize)
8. What … you … tomorrow at 6 o’clock? (do)
9. What … you … tomorrow? (take part in)
10. How many patients … the doctor … tomorrow by 5 p.m.? (hospitalize)
Exercise 13. Translate the sentences into your native language. Pay attention to the Present Perfect Continious: The patient has been complaining of a considerable muscular pain for some days.
The professor has been delivering the lecture for half an hour.
The student has been heating hydrogen in the tube for some minutes.
The nurse has been giving the injection for five minutes.
They have been working at the laboratory for two years.
The dentist has been examining the gingival for some minutes.
The patients have been receiving the injections of streptomycin for several days.
Exercise 14. Open the brackets using the verbs in the Present Perfect Continious: I (to read) the paragraph on types of immunity for half an hour.
She (to write) the test in Histology for ten minutes.
The patient (to wait) for the doctor since seven o’clock.
How long you (to stay) in hospital?
They( to perform) the operation since nine o’clock.
What this laboratory assistant (to do) here since morning?
