1 A: to school yesterday? (you/go) B: No, I ........ (be) sick.

A: Did you go to school yesterday? B: No, I was sick. **Translation:** A: Ты ходил в школу вчера? B: Нет, я был болен. **Explanation:** In the first question, we need to form a past simple question using "you/go". The correct past simple form of "go" is "did go". Therefore, the question is "Did you go...?". In the second sentence, we need the past simple form of "be". Since the subject is "I", the correct past simple form of "be" is "was".