单选题 Opinion polls are an unreliable ____ of election outcomes.

单选题 The demonstrators fled when soldiers ____ michine guns advanced on the crowd.

单选题 She ____ him in the ribs with her elbow.

单选题 You can't open the window becmse it will ____ the air condilnoing

单选题 I'd be the first to complain if a teacher ____.

单选题 An ____ of 'Elvis' is 'lives'.

单选题 The fear, of course is that failure will ____ our kids, sapping them of self-esteem.

单选题 The Republicans are currently drawing up their election ____.