До іть, будь ласка, зробити граматичну частину в кр

1. Many folk-tunes were used in Tchaikovsky's compositions.
2. New methods of work in agriculture have been introduced by the agronomist.
3. A recently devised apparatus was showed lecturer's students.
4. Children must be looked after all of us.
5. The Russian delegation was given a hearty welcome by the population of France.
6. I was asked to help in the garden by the gardener .
7. The English text is being translating by the students.
8. Their work was finished earlier than usual.
9. A telegram has been sent.
10. The problem was being discussing by the students at 6 o’clock yesterday.
11. A new English dictionary must be bought.

1. "Carbon calculators" can help you to know how much CO2 is produced by you.
2. Almost one ton of CO2 per person may be produced during a flight across the Pacific Ocean.
3. That can be done by buying energy-efficient light bulbs, refrigerators, and other appliances. By installing solar panels, we can make homes and businesses greener.
4. It may be offsetted by walking, riding bicycles, and driving hybrid cars.
5. This article implies the need  of reducing CO2 levels in the atmosphere.
Because, otherwise it may lead to global warming.