◎ 题干
—Let's go to play soccer this afternoon, Jack.
—Sorry, I ______ a piano lesson.
[     ]
A. had  
B. am having  
C. didn't have  
D. am not having
◎ 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“—Let's go to play soccer this afternoon, Jack. —Sorry, I ______ a piano lesson. [ ]A. had B. am having C. didn't have D. am not having…”主要考查了你对  【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。