Complete the second sentences so that it means the same as the first one. Use up to three words. 1. The mayor has opened a recycling centre.
A recycling centre ………………………………… by the mayour.
2. A famous environmentalist wrote this book.
This book ………………… by a famous environmentalist.
3. In the future, electricity will power cars.
In the future, cars ……………………. by electricity.
4. They are installing a new solar panel today.
A new solar panel ……………………. today.
5. We will have collected all the litter by tomorrow.
By tomorrow, all the litter …………………. collected.
6. Factories cause a lot of air pollution.
A lot of air pollution ………………………. by factories.

1. A recycling centre has been opened by the mayor.
Explanation: The passive voice is used to show that the action (opening the recycling centre) was done by someone (the mayor) but the focus is on the object (the recycling centre).
Steps to solve:
- Identify the subject (The mayor) and the verb (opened) in the first sentence.
- Change the subject into the object and add the auxiliary verb "has been" before the past participle form of the verb "open" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.

2. This book was written by a famous environmentalist.
Explanation: The passive voice is used to show that the action (writing the book) was done by someone (a famous environmentalist) but the focus is on the object (this book).
Steps to solve:
- Identify the subject (A famous environmentalist) and the verb (wrote) in the first sentence.
- Change the subject into the object and add the auxiliary verb "was" before the past participle form of the verb "write" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.

3. In the future, cars will be powered by electricity.
Explanation: The passive voice is used to show that the action (powering the cars) will be done by something (electricity) but the focus is on the object (the cars).
Steps to solve:
- Identify the subject (Electricity) and the verb (will power) in the first sentence.
- Change the subject into the object and add the auxiliary verb "will be" before the past participle form of the verb "power" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.

4. A new solar panel is being installed today.
Explanation: The passive voice is used to show that the action (installing the solar panel) is being done by someone/something, but the focus is on the object (the solar panel).
Steps to solve:
- Identify the subject (They) and the verb (are installing) in the first sentence.
- Change the subject into the object and add the auxiliary verb "is being" before the present participle form of the verb "install" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.

5. By tomorrow, all the litter will have been collected.
Explanation: The passive voice is used to show that the action (collecting all the litter) will have been done by someone/something, but the focus is on the object (the litter).
Steps to solve:
- Identify the subject (We) and the verb (will have collected) in the first sentence.
- Change the subject into the object and add the auxiliary verb "will have been" before the past participle form of the verb "collect" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.

6. A lot of air pollution is caused by factories.
Explanation: The passive voice is used to show that the action (causing air pollution) is done by someone/something, but the focus is on the object (a lot of air pollution).
Steps to solve:
- Identify the subject (Factories) and the verb (cause) in the first sentence.
- Change the subject into the object and add the auxiliary verb "is" before the past participle form of the verb "cause" to create the passive voice.
- Rearrange the words if necessary to form a grammatically correct sentence.