1) book's title
2) country's economy
3) government's decision
4) boy's work
5) three week's holiday
6) Tom's and Jany's wedding
7) children's toys
8) sister's bedroom
9) brother's-in-low house
10) my wife's hobby
11) the Millers's car
12) her boyfriend's photo
13) last Saturday's newspaper
14) Professor Jones's umbrella
Вроде так)