◎ 题干
— Mike, where is Alice?
— She is still studying in the classroom. She ______ for three hours.

A. study
B. studied
C. studies
D. has been studying
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— Mike, where is Alice? — She is still studying in the classroom. She ______ for three hours. [ ]A. studyB. studiedC. studiesD. has been studying …”主要考查了你对  【现在完成进行时】  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。