Ответ:

who, which, who, which, who, where, which, who, who, who, where

my father is the person who loves salling

Peter is the friend who spends his holidays in the mountains

those are the girls who go the shopping once a week and love buying new clothes

Susan is the girl, who wants to be a interpreter

those are top models who earn a lot of money

George is a friend who works at McDonald's

those are women who watch TV all day