1. John was at home last week. (Singular)
2. They were at the cinema yesterday. (Plural)
3. Your parents were at the station at nine o’clock. (Plural)
4. Mary was in the the street this morning. (Singular)
5. My aunt was in the hospital yesterday morning. (Singular)
6. I was at school this morning. (Singular)
7. Jill and Kevin were at the zoo last Sunday. (Plural)
8. We were in a Chinese restaurant last night. (Plural)