Jane established a program, ____ young people to take part in activities ____ promote greater concern for the environment．A.to encourage; whereB.having encouraged; whereC.encouraging; thatD.encouraged; which
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C解析第一空用现在分词作状语，因为encourage与Jane为主谓关系；第二空用定语从句修饰activities，关系词that在从句中做主语。句意为“ 简建立了一个项目鼓励年轻人加入提升环保意识的活动”