◎ 题干

—Is he coming?
—I'm not sure.He may be late or,____, he may not come at all.
A.at presentB.at leastC.worse stillD.for a while
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Is he coming? —I'm not sure.He may be late or,____, he may not come at all.A.at presentB.at leastC.worse stillD.for a while…”主要考查了你对  【介词和介词短语】  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。