◎ 题干
--- Where are the students ? How could they keep us waiting for so long? 
--- They started an hour ago and they____ be here in fifteen minutes, I think.
A.mightB.wouldC.shouldD.must
◎ 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“ --- Where are the students ? How could they keep us waiting for so long?--- They started an hour ago and they____ be here in fifteen minutes, I think.A.might…”主要考查了你对  【虚拟语气】【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。