Люди 35 !
open the brackets and write only the verb forms with the subject in past simple (positive sentences or questions):

1. food for cats? (to buy/ she)

2. about these problems? (you/ to think)

3. why to the theatre? (to go/ jane)

1) Did she buy a food for cats? (вопрос)
She bought a food for cats (позитив предложение)
2)Did you think about these problems?
You thought about these problems
3) Why did Jane go to the theater?