Ответ:
1) This city was destroyed by the fire
The fire destroyed this city
2) This lecture was attended by many people
People were attended this lecture
3) The book will be published in spring
In spring book will be published
4) The class is taught by Mr. Smith
Mr. Smith taught this class
5) It was designed by French engineer
French engineer designed it
6) This book is always read by the students of the first course
The students of the first course always read this book
7) The letter was left on the table
There was left the letter on this table
8) The Palace was struck by lighting
This lighting was struck the Palace
9) The cries were heard by everyone
Everyone heard the cries
10) All these books were published by this publishing house
This publishing house was published all these books
Объяснение: