◎ 题干
—Where are you ________?
—I’m going to the airport to ________ my friend.
A.heading on; pick up B.going for; pick down
C.heading for; pick up D.heading away; pick down
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—Where are you ________? —I’m going to the airport to ________ my friend.A.heading on; pick upB.going for; pick downC.heading for; pick upD.heading away; …”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。