◎ 题干
Serena is a bank clerk. Her work is relaxing but _____ boring.  
[     ]
A. a kind of
B. kind of
C. kinds of
D. all kinds of
◎ 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“Serena is a bank clerk. Her work is relaxing but _____ boring. [ ]A. a kind ofB. kind of C. kinds of D. all kinds of …”主要考查了你对  【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。