Краткое пояснение: Выбираем между формами прошедшего времени глагола to be – was (для единственного числа) и were (для множественного числа).
- I was 5 years old when I started to read easy stories.
- Jill's parents were at the café yesterday evening.
- Fred was happy to see his granny last week in the village.
- My cousins were in the 11 grade when they passed exams.
- You were very funny yesterday, thank you for you mood.
Ответ: was/were