【推荐1】It’s only a ________ (minor) of people who are causing the problem.（用所给词的适当形式填空）

【推荐2】Local authority child-care provision covers only a tiny ________ (majority) of working mothers. （所给词的适当形式填空）

【推荐3】Only a small________ (minor) of students are interested in politics these days. (所给词的适当形式填空)

【推荐1】The year 2020 ______(witness) a series of remarkable moves in Chinahistory,including a 10-year fishing ban along the Yangtze River,a total ban on importing solid waste,and the conclusion of a three-year action plan on fighting against air pollution. （所给词的适当形式填空）

【推荐2】It___________________(upset) him that no one had bothered to tell him about it. (所给词的适当形式填空)

【推荐3】Sue’s face ______ (light) up with surprise. (所给词的适当形式填空）