Сделайте отрицательную форму:1) We may have finished these experiments by the

1. Why had the patient's condition been complicated? (a) The patient's condition has been complicated today because he feels pain in the heart area, b) The patient's condition had been complicated because he did not receive any treatment last month, c) The patient's condition will have been complicated if he does not receive any treatment by tomorrow.) 2. What has been controlled? (a) The disease will have been controlled by the beginning of the next week, b) The disease had been controlled before the patient was discharged from the hospital, c) The disease has already been controlled and the patient is able to start his work again.) *