Exercises on genitive 's

Write apostrophe 's into the gaps. Example: I met _______ sister yesterday. (Mandy) Answer: I met Mandy's sister yesterday. 1) This is  book. (Peter) 2) Let's go to the . (Smiths) 3) The  room is upstairs. (children) 4)  sister is twelve years old. (John) 5)  and  bags have blue stickers. (Susan - Steve) 6)  shoes are on the second floor. (men) 7) My  car was not expensive. (parents) 8)  CD player is new. (Charles) 9) This is the  bike. (boy) 10) These are the  pencils. (boys)

If you wanto to check the answers, go to: 

http://www.englisch-hilfen.de/en/exercises/nouns_articles/apostrophe_s.htm