Rewrite the sentences in the passive. 1.
1. You can recycle household and garden waste.
2. Special panels collect the energy from the sun.
3. Pipes brought water to the house of drinking.
4. A big container is collecting rainwater.
5. They recycle the water.
6. They have recycled waste paper.
7. A pipe was carrying the gas to a power station.
8. A power station will produce electricity.
9. The government should encourage recycling,
10. The Greens had collected lots of materials for recycling.
11. They have never dumped rubbish in the sea or rivers.
12. Many people use recycled products.
13. They catch a lot of fish in this area.
14. Someone has cleaned the pavement.
15. They say the temperature will rise significantly in this century.
16. They hope to save some endangered species from extinction.
17. They believe mass tourism degrades habitats and landscapes.
18. They've decided to hold a meeting very soon.​

1. Household and garden waste can be recycled.
- The active sentence "You can recycle household and garden waste" is rewritten in the passive voice by using the auxiliary verb "can" as the main verb and adding the passive auxiliary verb "be" before the past participle form of the verb "recycled."

2. The energy from the sun is collected by special panels.
- The active sentence "Special panels collect the energy from the sun" is rewritten in the passive voice by using the passive verb "is collected" followed by the preposition "by" and the subject "special panels."

3. Water was brought to the house for drinking by pipes.
- The active sentence "Pipes brought water to the house for drinking" is rewritten in the passive voice by using the passive auxiliary verb "was" followed by the past participle form of the verb "brought," and the preposition "to" is replaced with "for" to indicate the purpose of the water.

4. Rainwater is being collected by a big container.
- The active sentence "A big container is collecting rainwater" is rewritten in the passive voice by using the passive verb "is being collected" followed by the preposition "by" and the subject "a big container."

5. The water is recycled by them.
- The active sentence "They recycle the water" is rewritten in the passive voice by using the passive verb "is recycled" and placing the subject "the water" at the beginning of the sentence.

6. Waste paper has been recycled by them.
- The active sentence "They have recycled waste paper" is rewritten in the passive voice by using the passive verb "has been recycled" followed by the subject "waste paper."

7. The gas was being carried to a power station by a pipe.
- The active sentence "A pipe was carrying the gas to a power station" is rewritten in the passive voice by using the passive auxiliary verb "was being" followed by the past participle form of the verb "carried," and the preposition "to" is replaced with "by" to indicate the means of transportation.

8. Electricity will be produced by a power station.
- The active sentence "A power station will produce electricity" is rewritten in the passive voice by using the passive verb "will be produced" followed by the preposition "by" and the subject "a power station."

9. Recycling should be encouraged by the government.
- The active sentence "The government should encourage recycling" is rewritten in the passive voice by using the passive verb "should be encouraged" followed by the preposition "by" and the subject "the government."

10. Lots of materials for recycling were collected by the Greens.
- The active sentence "The Greens had collected lots of materials for recycling" is rewritten in the passive voice by using the passive verb "were collected" followed by the preposition "by" and the subject "the Greens."

11. Rubbish has never been dumped in the sea or rivers by them.
- The active sentence "They have never dumped rubbish in the sea or rivers" is rewritten in the passive voice by using the passive verb "has never been dumped" followed by the preposition "in" and the object "the sea or rivers," and the subject "them" is placed at the end of the sentence.

12. Recycled products are used by many people.
- The active sentence "Many people use recycled products" is rewritten in the passive voice by using the passive verb "are used" followed by the preposition "by" and the subject "many people."

13. A lot of fish are caught in this area.
- The active sentence "They catch a lot of fish in this area" is rewritten in the passive voice by using the passive verb "are caught" and placing the subject "a lot of fish" at the beginning of the sentence.

14. The pavement has been cleaned by someone.
- The active sentence "Someone has cleaned the pavement" is rewritten in the passive voice by using the passive verb "has been cleaned" followed by the preposition "by" and the subject "someone."

15. It is said that the temperature will rise significantly in this century.
- The active sentence "They say the temperature will rise significantly in this century" is rewritten in the passive voice by using the impersonal "It is said" followed by the conjunction "that," the passive verb "will rise" and the adverb "significantly."

16. Some endangered species hope to be saved from extinction.
- The active sentence "They hope to save some endangered species from extinction" is rewritten in the passive voice by using the passive verb "hope to be saved" followed by the preposition "from" and the object "extinction," and the subject "some endangered species" is placed at the beginning of the sentence.

17. Habitats and landscapes are believed to be degraded by mass tourism.
- The active sentence "They believe mass tourism degrades habitats and landscapes" is rewritten in the passive voice by using the passive verb "are believed" followed by the infinitive "to be degraded" and the preposition "by" indicating the agent, and the subjects "habitats and landscapes" are placed at the beginning of the sentence.

18. A meeting has been decided to be held very soon.
- The active sentence "They've decided to hold a meeting very soon" is rewritten in the passive voice by using the passive verb "has been decided" followed by the infinitive "to be held," and the adverb phrase "very soon" is left unchanged.