A - Write these sentences in the Passive voice: 1. Neil teaches many students in Porto. 2. Joana bakes cakes every day. 3. My friend repaired my car. 4. Many students speak English in my class. 5. The police arrested my best friend. 6. She finished her homework by eight o'clock. 7. Nobody repaired this broken table. 8. Are they typing the letters? 9. He answered all the questions. 10. They didn't tell me the truth. 11. They smile at the girl as she walks by 12. They don't keep the bicycle in the garage. 13. People speak well of your friend. 14. Teens think that money is the most important thing in life. 15. They make robots from strong metal. 16. Factories use robots because they are reliable. 17. Robots will never attack human beings. 18. They had to close that factory because the firm went bankrupt. 19. Someone made this dress in Spain. 20. They must blow up part of the tunnel. 21. They are solving the problem now. 22. They allowed the students to leave earlier on Thursday. 23. The police have questioned the suspect. 24. Lots of people use mobile phones. 25. They cut the grass this morning.

To convert the given sentences into the passive voice, we need to rearrange the structure of the sentences to focus on the receiver of the action rather than the doer of the action. Here are the sentences in the passive voice: 1. Many students in Porto are taught by Neil. 2. Cakes are baked by Joana every day. 3. My car was repaired by my friend. 4. English is spoken by many students in my class. 5. My best friend was arrested by the police. 6. Her homework was finished by eight o'clock. 7. This broken table was not repaired by anybody. 8. Are the letters being typed by them? 9. All the questions were answered by him. 10. The truth wasn't told to me by them. 11. The girl is smiled at by them as she walks by. 12. The bicycle is not kept in the garage by them. 13. Your friend is spoken well of by people. 14. Money is thought to be the most important thing in life by teens. 15. Robots are made from strong metal. 16. Robots are used by factories because they are reliable. 17. Human beings will never be attacked by robots. 18. That factory had to be closed because the firm went bankrupt. 19. This dress was made in Spain by someone. 20. Part of the tunnel must be blown up by them. 21. The problem is being solved by them now. 22. The students were allowed to leave earlier on Thursday. 23. The suspect has been questioned by the police. 24. Mobile phones are used by lots of people. 25. The grass was cut this morning. By transforming the active voice sentences into the passive voice, the focus shifts from the doer of the action to the receiver of the action, resulting in sentences that emphasize what is being done rather than who is doing it.