◎ 题干
— I wonder if you could go with me to the supermarket.
— Don't disturb me. I _______ my experiment report all the morning and haven't finished yet.

A. write      
B. was writing      
C. have written    
D. have been writting
◎ 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“—I wonder if you could go with me to the supermarket. —Don't disturb me. I _____________my experiment report all the morning and haven't finished yet.[ ]A.…”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。