Краткое пояснение:
Заполняем пропуски, выбирая нужную форму глагола to be в прошедшем времени в зависимости от числа и контекста предложения.
- There were a lot of people in the fast food restaurant last night. It was very busy! (Много людей, множественное число – were).
- Katie was at school last week? - No, she wasn't. She was sick. (Кэти, единственное число – was, отрицание – wasn't).
Ответ: 1. were; 2. was, wasn't