◎ 题干
________you never plan to visit the polar bears in the North Pole or the penguins in the South Pole,now it is the proper time to start thinking about that.
A.UntilB.UnlessC.As long asD.Even if
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“________you never plan to visit the polar bears in the North Pole or the penguins in the South Pole,now it is the proper time to start thinking about that.A.Un…”主要考查了你对  【并列连词】【从属连词】  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。