◎ 题干
—Mr Gao went to Shanghai for the air exhibition last week.
—Is that _______ he had two days off?

A. what
B. when
C. why
D. where
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—Mr Gao went to Shanghai for the air exhibition last week.—Is that _______ he had two days off? [ ]A. what B. when C. why D. where …”主要考查了你对  【连接副词】  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。