◎ 题干
— What is our head teacher like,do you know?
— Oh,he is very kind  _____ he looks very serious.
[     ]
A. because          
B. though            
C. if        
D. when
◎ 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“— What is our head teacher like,do you know?— Oh,he is very kind_____ he looks very serious.[ ]A. becauseB. though C. if D. when…”主要考查了你对  【从属连词】  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。