◎ 题干
Mrs. White became a teacher in 1985. She _____ for twenty years by next summer.
A.will teach B.would have taught C.has been teaching D.will have been teaching
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Mrs. White became a teacher in 1985. She _____ for twenty years by next summer. A.will teachB.would have taughtC.has been teachingD.will have been teaching…”主要考查了你对  【将来完成时】【将来完成时的被动语态】  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。