Rewrite- Passive 1. Where did they hold the 1988 Olympic Games? => 2. They have not read a book. =>

$\text{1. Where did they hold the 1988 Olympic Games?}$

$\text{→ Where was the 1988 Olympic Games held?}$

$\text{2. They have not read a book.}$

$\text{→ A book has not been read by them.}$