essential specific non-existent acceptable tasteful controversial minimal proper Good food and plenty of exercise are _______ to a healthey life. This is a game that is suitable for _____ age groups. On an early Sunday morning traffic was almost _________. Smoking is no longer considered ______in many countries. This room is furnished with _______ furnishings and original artwork. I tried to avoid ______ topics, such as religion and politics. This is a practical course, with only a(n) _____ amount of theory. We need to put the bookds back in their ____ place.