◎ 题干
—Jack is not in the office at the moment
—Oh, he ______ those who are going to take the driving test in an hour.
A.can have instructedB.must have instructed
C.must be instructing D.will be instructing
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Jack is not in the office at the moment—Oh, he ______ those who are going to take the driving test in an hour.A.can have instructedB.must have instructedC.must…”主要考查了你对  【情态动词】  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。