◎ 题干
—______ your sister ______ in Greener China for a long time?
—Yes.She joined it five years ago.
A.Has; beenB.Have; been
C.Has; joinedD.Have; joined
◎ 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“ —______ your sister ______ in Greener China for a long time?—Yes.She joined it five years ago.A.Has; beenB.Have; beenC.Has; joinedD.Have; joined…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。