◎ 题干
Li Lei ______ in the classroom now. But he______ a moment ago. He ______ to the teacher's office.   
[     ]
A. is, wasn't, has gone    
B. isn't, was, went   
C. is, wasn't, has been   
D. isn't, was, has gone
◎ 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“Li Lei ______ in the classroom now. But he______ a moment ago. He ______ to the teacher's office. [ ]A. is, wasn't, has gone B. isn't, was, went C. is, …”主要考查了你对  【一般现在时】【一般过去时】【现在完成时】  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。