Teaching is a sort of work that ___ a high level of patience, determination and devotion.
Life is tough in the city. In order to lose their _______, some people drink alcohol.
Usually a child’s behavior is a(n) ________ of his family environment.
You have been sitting on my hat and now it is badly out of __________.
I can't say which wine is stronger—it's a (n)_____ of personal taste.
Our public transportation system is not ________ for the needs of people.