◎ 题干
(2013·吉林一中二模)Programs,________to join the old and the young together, are growing in popularity all over the world.
A.designed B.to be designed
C.designing D.having designed
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“(2013·吉林一中二模)Programs,________to join the old and the young together, are growing in popularity all over the world.A.designedB.to be designedC.designingD…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。