Реши

Хорошо, давай преобразуем эти предложения в пассивный залог. Суть пассивного залога в английском языке - это когда субъект действия неизвестен или не столь важен, и вместо этого внимание сосредоточено на объекте действия. Итак, поехали:

1. Doctor David Gramp painted this picture when he was on holiday. — This picture was painted by Doctor David Gramp when he was on holiday (уже готово).
2. The policeman stopped me when I was crossing the street. — I was stopped by the policeman when I was crossing the street.
3. They showed the match on television. — The match was shown on television.
4. We bought these newspapers and magazines yesterday. — These newspapers and magazines were bought by us yesterday.
5. My dad did all the cooking when we were on a hiking tour. — All the cooking was done by my dad when we were on a hiking tour.

Вот так, теперь у тебя все предложения в пассиве. Если что-то непонятно или нужна дополнительная помощь - спрашивай, помогу!