◎ 题干
Mr. Smith works with an auto company, but he _________ for this industrial exhibition, since he is
on leave.
[     ]
A. has worked       
B. worked      
C. has been working      
D. is working 
◎ 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“Mr. Smith works with an auto company, but he _________ for this industrial exhibition, since he is on leave.[ ]A. has workedB. workedC. has been workingD.…”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。