Переведите на "от нас ушла целая эпоха"

We lost a whole era

He left us a whole epoch

1. the nurse had returned to the operating room before the operation  started. 2. he did  not bandage (he wasn't bandaging-это если показать нужно процесс, который прервался другим действием=кровь пошла)the limb when the bleeding started again. 3. the blood had been  transfused by 5 o’clock yesterday. 4. when the assistant came to the laboratory a few glasses had  already exploded. 5. the boy had  fractured his leg before the help came. 6. we will have  held our meeting by the end of the next week. 7. he will have  incised the tissues by the time our teacher comes. 8. i will be  drawing the scheme of the neuralgia cells today 5 o’clock. 9. by two o’clock the surgeon will have  performed appendectomy.(это если в будущем времени, то есть= к двум часам хирург закончит удалять аппендицит, а если по отношению к прошлому времени, тогда by two o'clock(yesterday) the surgeon had performed appendectomy)