◎ 题干
— How long do you think it will be _____ President Hu Jintao makes another visit to America?
— It all depends.

[     ]

A. when
B. that
C. before
D. until
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— How long do you think it will be _____ President Hu Jintao makes another visit to America?—It all depends. [ ]A. when B. that C. before D. until …”主要考查了你对  【介词和介词短语】  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。