Since drug abusers have difficulty＿the addiction, support groups where they can talk about their struggles and find new ways to manage in the world are often needed.

More than _______ of the classmates in my class ____ fond of pop music．

 John began to feel little beads of sweat going down the back of his neck. His words seemed to have had no visible _______ on the man. 

The film Gone with the Wind was shot in Atlanta, the US because the novel was _____ the American Civil War．

 I took part in the ____ in the sports meeting last week.