试题 试卷
题型：单选题 题类：常考题 难易度：普通
北京四中2018-2019学年高一上学期英语期末考试试卷
— When big firms reduce their expenses, we ______ know that times are really hard.
—Maybe he got caught in the rain.
— Terribly sorry, but I have something urgent to tell you.
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