Давайте разберем, как правильно преобразовать данные предложения в Past Indefinite Passive Voice и Future Indefinite Passive Voice, а затем заменим страдательный залог действительным.

• The books are printed in Moscow. → The books were printed in Moscow.
• The newspapers are read by everybody. → The newspapers were read by everybody.
• The exercise-book is left at home. → The exercise-book was left at home.
• The weather is often changed in this part of the country. → The weather was often changed in this part of the country.
• Nelly is often asked at the lesson. → Nelly was often asked at the lesson.
• Bob is invited to dinner. → Bob was invited to dinner.
• The driver is found near the bus. → The driver was found near the bus.
• The entire city is destroyed by the fire. → The entire city was destroyed by the fire.
• The book is written with the pen. → The book was written with the pen.
• His report is listened to with great interest. → His report was listened to with great interest.

• The books are printed in Moscow. → The books will be printed in Moscow.
• The newspapers are read by everybody. → The newspapers will be read by everybody.
• The exercise-book is left at home. → The exercise-book will be left at home.
• The weather is often changed in this part of the country. → The weather will often be changed in this part of the country.
• Nelly is often asked at the lesson. → Nelly will often be asked at the lesson.
• Bob is invited to dinner. → Bob will be invited to dinner.
• The driver is found near the bus. → The driver will be found near the bus.
• The entire city is destroyed by the fire. → The entire city will be destroyed by the fire.
• The book is written with the pen. → The book will be written with the pen.
• His report is listened to with great interest. → His report will be listened to with great interest.

• This book was written by Dostoevski. → Dostoevski wrote this book.
• The class is taught by Mr. Smith. → Mr. Smith teaches the class.
• The letter was left by me on the table. → I left the letter on the table.
• The book will be published by them in spring. → They will publish the book in spring.
• All the letters are looked through by the secretary. → The secretary looks through all the letters.
• The blackboard was cleaned by the pupils. → The pupils cleaned the blackboard.

Таким образом, мы преобразовали предложения в нужные времена и заменили страдательный залог действительным. Если у вас есть дополнительные вопросы, не стесняйтесь спрашивать!