◎ 题干
He usually goes to work by bike, but______ walks to the office.

A. often
B. never
C. always
D. sometimes
◎ 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“He usually goes to work by bike, but______ walks to the office. [ ]A. often B. never C. always D. sometimes …”主要考查了你对  【频度副词】  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。