1. By the time Peter came, we had already gone home. 2. What were you doing yesterday at 11 p.m.? 3. When the teacher entered the classroom, the students were laughing. 4. Sam was waking up after his mom had gone to work. 5. While Kate was looking for her passport, she found her old photo. 6. Adam had arrived before the lecture started. 7. By the evening they had completed all the tasks. 8. My sister was sleeping while I was cooking dinner.

Перевод задания: Вставьте правильные формы глаголов, используя Past Simple, Past Continuous и Past Perfect.

1. By the time Peter came, we had already gone home.
   К тому времени, как Питер пришёл, мы уже ушли домой.
2. What were you doing yesterday at 11 p.m.?
   Что ты делал вчера в 11 часов вечера?
3. When the teacher entered the classroom, the students were laughing.
   Когда учитель вошёл в класс, ученики смеялись.
4. Sam was waking up after his mom had gone to work.
   Сэм просыпался после того, как его мама ушла на работу.
5. While Kate was looking for her passport, she found her old photo.
   Пока Кейт искала свой паспорт, она нашла свою старую фотографию.
6. Adam had arrived before the lecture started.
   Адам приехал до начала лекции.
7. By the evening they had completed all the tasks.
   К вечеру они выполнили все задания.
8. My sister was sleeping while I was cooking dinner.
   Моя сестра спала, пока я готовил ужин.

Правило: Past Continuous обозначает действие в процессе, Past Perfect — действие, которое произошло раньше другого действия в прошлом, а Past Simple — завершённое действие в прошлом.