Задание 3. вставьте глагол to be в форме present, pastили future indefinite.when ..... you at work yesterday? - i ..... there at 8 o’clock.my brother ..... not ill now.i ..... not in kyiv now. i ..... in london.all my family ..... at home tomorrow.when he ..... young, he ..... was a pilot.she ..... a good student.where ..... you last friday? – i ..... at the cinema.nick ..... ill last month.where ..... your father now? i think he ..... not ..... a doctor.

Вот правильные формы глагола to be для каждого предложения:

1. When were you at work yesterday? — I was there at 8 o’clock.
2. My brother is not ill now.
3. I am not in Kyiv now. I am in London.
4. All my family will be at home tomorrow.
5. When he was young, he was a pilot.
6. She is a good student. (Или was, если речь о прошлом, но без маркера времени обычно используется Present).
7. Where were you last friday? — I was at the cinema.
8. Nick was ill last month.
9. Where is your father now?
10. I think he is not a doctor. (Если это продолжение вопроса про отца в настоящем времени).

Вы можете проверить правила спряжения глагола to be в разных временах на British Council или потренироваться с помощью упражнений на English Grammar Online. Сообщите, если вам нужно разъяснение правил согласования этих времен или перевод предложений.