1.Dartmoor is located
2.Dartmoor is both
3.Granite was formed millions of years ago from
4.Tors are
5.Granite doesn't allow water to pass through so there areand
6.In the past there wereand which are not open nowadays​

1. The bill will be brought to us by the waiter. (The active sentence "The waiter will bring us the bill" is transformed into passive by using the past participle "brought" and the appropriate auxiliary verb "will be")

2. He was presented with a medal by the Queen. (The active sentence "The Queen presented him with a medal" is transformed into passive by using the past participle "presented" and the appropriate auxiliary verb "was")

3. Mary was bought some sweets by her mother. (The active sentence "Her mother bought Mary some sweets" is transformed into passive by using the past participle "bought" and the appropriate auxiliary verb "was")

4. A second-hand car has been sold to Ted by Bob. (The active sentence "Bob has sold Ted a second-hand car" is transformed into passive by using the past participle "sold" and the appropriate auxiliary verb "has been")

5. A letter is going to be sent to Tom by Larry. (The active sentence "Larry is going to send a letter to Tom" is transformed into passive by using the past participle "sent" and the appropriate auxiliary verb "is going to be")

Хорошо, давайте начнем с изменения предложений, используя пассивный залог.

1. The first prize was taken by this club.
Это предложение было изменено, чтобы вместо того, чтобы сказать, что "This club took the first prize" (Этот клуб получил первый приз), мы говорим "The first prize was taken by this club" (Первый приз был получен этим клубом).

2. The guitar is played by the girl every evening.
Здесь мы изменяем предложение "The girl plays the guitar every evening" (Девочка играет на гитаре каждый вечер), чтобы сказать "The guitar is played by the girl every evening" (Гитара играется девочкой каждый вечер).

3. The letters are delivered by the postman every day.
В этом случае мы изменяем предложение "The postman delivers the letters every day" (Почтальон доставляет письма каждый день) на "The letters are delivered by the postman every day" (Письма доставляются почтальоном каждый день).

4. A car is driven by the driver.
Вместо предложения "The driver drives a car" (Водитель водит машину) мы говорим "A car is driven by the driver" (Машина водится водителем).

5. The hat was chosen by the child.
Мы меняем предложение "The child chose the hat" (Ребенок выбрал шляпу) на "The hat was chosen by the child" (Шляпа была выбрана ребенком).

6. The mouse was caught by the cat.
Вместо "The cat caught the mouse" (Кошка поймала мышь) мы говорим "The mouse was caught by the cat" (Мышь была поймана кошкой).

7. The house will be built by the workers next year.
Здесь мы изменяем предложение "The workers will build the house next year" (Рабочие построят дом в следующем году) на "The house will be built by the workers next year" (Дом будет построен рабочими в следующем году).

8. All the water was drunk by the dog.
Мы меняем предложение "The dog drank all the water" (Собака выпила всю воду) на "All the water was drunk by the dog" (Вся вода была выпита собакой).

9. The garden was watered by the man yesterday.
Вместо предложения "The man watered the garden yesterday" (Мужчина полил сад вчера) мы говорим "The garden was watered by the man yesterday" (Сад был полит мужчиной вчера).

Теперь предложения изменены, используя пассивный залог, чтобы подчеркнуть объект (то, на что делается действие) в предложении, а не лицо (то, что совершает действие). Я надеюсь, что мое объяснение было достаточно подробным и понятным для вас. Если у вас есть еще вопросы, пожалуйста, не стесняйтесь задавать.