Вопросительная форма: Is the USA one of the most highly developed States? Отрицательная форма: The USA isn't one of the most highly developen states. Вопросительная форма: Has it 5% of the world's population? Отрицательная форма: It hasn't 5% or the world's population. Вопросительная форма: Is the manufacture of transportation equipment includes motor vehicles, aircraft and space equipment? Отрицательная форма: Manufacture isn't of transportation equipment includest motor vehicles, aircraft and space equipment.
1. Tom wasn't /weren't at school last week.
2. It was / were cold yesterday.
3. My parents wasn't/ weren't in Italy last year.
4. Sally was / were in the country at the weekend.
5. Sarah wasn't / weren't happy yesterday.
6. They was / were late for school last Tuesday.
7. Dave wasn't/ weren't tired yesterday.
8. Ted and Jill was / were at the theatre last night.
Правило очень простое:
Когда действие выполняет один человек или предмет, используй WAS,
а если действие выполняют несколько людей или предметов, то нужно использовать форму WERE.