◎ 题干
–– When did they arrive?
–– They ______two hours ago .They ______ here for two hours .
A.arrived; have arrived B.arrived; have been
C.got; have beenD.reached; have reached
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“–– When did they arrive?–– They ______two hours ago .They ______ here for two hours .A.arrived; have arrived B.arrived; have beenC.got; have beenD.reached;…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。