Question

I read the book long ago (change to passive) ​

Answer 1

ANSWER:-

According to question ,

you asked us to change into passive voice

while changing from active to passive voice , we have to change the tenses and places of subject etc..

After changing all those things, the result is

PASSIVE SENTENCE:-

The book is read by me long ago.

Answer 2

The book is red by me long ago.