◎ 题干
— Do you have any idea why the bus-drivers are on strike?
— As far as I know, they are _____ a pay rise.
[     ]
A. calling off
B. calling at
C. calling in
D. calling for
◎ 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“— Do you have any idea why the bus-drivers are on strike? — As far as I know, they are _____ a pay rise. [ ]A. calling off B. calling at C. calling in D. c…”主要考查了你对  【动词短语】  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。