Решение:
Выбираем was для единственного числа и were для множественного.
- The football match was yesterday. (Football match — единственное число).
- The medals were . (Medals — множественное число).
- The swimming pool was . (Swimming pool — единственное число).
- The race was won by the fastest runner. (Race — единственное число).
- The sports events were held at the school last week. (Sports events — множественное число).
- The first tennis racket was made of wood. (Tennis racket — единственное число).
Ответ: 1. was, 2. were, 3. was, 4. was, 5. were, 6. was.