◎ 题干
You’d better book the tickets in advance; _______ we may miss the concert.    
[     ]
A. however        
B. therefore        
C. nevertheless        
D. otherwise
◎ 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“You’d better book the tickets in advance; _______ we may miss the concert.[ ]A. however B. thereforeC. nevertheless D. otherwise…”主要考查了你对  【介词和介词短语】  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。