Поставьте предложения в отрицательной, а затем в вопросительной форме (письменно): 1. the patient was able to fall asleep after taking the medicine. 2. we had to summarize and analyse all the findings of our observations. 3. the fifth-year students will be allowed to operate on the patients by themselves.

В отрицательной
1. The patient was not able to fall asleep after taking the medicine.
2. We did not have to summarize and analyse all the findings of our observations.
3. The fifth-year students will not be allowed to operate on the patients by themselves.
в вопросительной
1. Was the patient able to fall asleep after taking the medicine?
2. Did we have to summarize and analyse all the findings of our observations?
3. Will the fifth-year students be allowed to operate on the patients by themselves?