Профи в английском! Нужна Ваша помощь! 99 БАЛЛОВ! Не прошу делать всё! Но по возможности...

Question

Профи в английском! Нужна Ваша помощь! 99 БАЛЛОВ! Не прошу делать всё! Но по возможности то, что точно знаете как делать) Заранее благодарю:*
I. Напишите следующие предложения в Simple Past Passive.
1. Henry John Heinz introduced canned food in 1869.
2. The USA introduced the world*s first traffic light in 1914.
3. In 1893 Henry Ford built the first car.
4. Robert Goddard launched the first liquid-fuelled rocket in 1874.
5. In 1846 Elias Howe invented a sewing machine.

II. Найдите ошибки в предложениях и исправьте их.
1. Mathes have been invented by John Walker in 1827.
2. Canned food was invented long before instant coffee was made.
3.By the time the first vacuum cleaner had been built the telephone had been invented.
4. By the beginning of the 21st century the idea of cloning was developed.
5. The electric arc has been discovered by V. Petrov in 1802

Answer 1

1.Canned food was introduced by Henry John Heinz in 1869.
2.The world*s first traffic was introduced by the USA in 1914
3.The first car was built by Henry Ford in 1893.
4.The first liquid-fueled rocket was launched by Robert Goddard in 1874.
5.A sewing machine was invented by Elias Howe in 1846.

1. Mathes were invented by John Walker in 1827.
2. Canned food had been invented long before instant coffee was made.
3.By the time the first vacuum cleaner had been built the telephone was invented.
4. By the beginning of the 21st century the idea of cloning had been developed.
5. The electric arc was discovered by V. Petrov in 1802

Comments

А можно спросить? А там вместо was можно написать "had been", а то у нас в учебнике везде had been используется как прошедшее совершенное время в пассивном залоге)

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Не надеялась, что здесь действительно умные люди есть. Ещё раз Вам спасибо)