◎ 题干

.---I’m going to the States for further study.
---How long ____ you ___there?
A.had , stayedB.did, stayC.have, stayedD.are, staying
◎ 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“.---I’m going to the States for further study. ---How long ____ you ___there?A.had , stayedB.did, stayC.have, stayedD.are, staying…”主要考查了你对  【therebe句型】  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。