◎ 题干
Mr. Smith knows ____________ the party, but Li Ming ____________. 
[     ]
A. about, doesn't
B. at, doesn't
C. about, not
◎ 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 knows ____________the party, but Li Ming ____________.[ ]A. about, doesn't B. at, doesn't C. about, not …”主要考查了你对  【介词】【助动词】  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。