Решение:
Переводим предложения в Past Simple:
- I visited my grandmother yesterday. (Past Simple – добавляем -ed к глаголу visit).
- They played computer games after school. (Past Simple – добавляем -ed к глаголу play).
- She didn't clean her room. (Past Simple, отрицание – didn't + инфинитив).
- Did you walk to school? (Past Simple, вопрос – Did + подлежащее + инфинитив).
- We saw an interesting film. (Past Simple – неправильный глагол see, форма saw).
Ответ: visited; played; didn't clean; Did ... walk; saw.