◎ 题干
I          _ my office every day. But now I ______.
[     ]
A. clean; am reading      
B. am cleaning; reading      
C. cleaning; read      
D. clean; read
◎ 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_ my office every day. But now I______.[ ]A. clean; am readingB. am cleaning; readingC. cleaning; readD. clean; read…”主要考查了你对  【实义动词】【一般现在时】【现在进行时】  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。