Давайте ответим на эти вопросы, используя отрицательные формы Past Simple. Ниже приведены шаги для формирования отрицательных предложений в Past Simple.

1. Для образования отрицательной формы в Past Simple, мы используем вспомогательный глагол "did" и основной глагол в начальной форме.
2. Структура отрицательного предложения: "Subject + did not (didn't) + base form of the verb".

Теперь давайте ответим на ваши вопросы:

1. Is your suit made of cotton? No, my suit was not made of cotton.
2. What language are you taught at your school? No, I was not taught English at my school.
3. Was your answer discussed at the lesson? No, my answer was not discussed at the lesson.
4. Is your classroom cleaned every day? No, my classroom was not cleaned every day.
5. Where will you be sent by your parents next summer? No, I was not sent anywhere by my parents next summer.
6. When were the pyramids built? No, the pyramids were not built recently.
7. Where are the food products bought? No, the food products were not bought at the market.
8. When will Easter be celebrated this year? No, Easter was not celebrated in April this year.
9. What soup is often cooked in your family? No, borscht was not often cooked in my family.

Таким образом, мы использовали отрицательную форму Past Simple для ответов на все вопросы. Если у вас есть дополнительные вопросы или нужна помощь, не стесняйтесь спрашивать!