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 отрицательной1. 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 вопросительной1. 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?