Task 1: Follow
the link, read the rules and do the exercises: http://learnenglish.britishcouncil.org/en/grammar-reference/passives
Task 2: In
comments write 5 questions about interesting facts to your partners. Use
Passive! 
E.g.  How is green tea
made? 
Also, answer your group mates’  questions. 
Deadline: 23.05.13
