◎ 题干
More than 20 people ________ in traffic accidents ________ last week.
A.died; forB.have been dead; sinceC.have died; forD.have been dead, for
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“More than 20 people ________ in traffic accidents ________ last week.A.died; forB.have been dead; sinceC.have died; forD.have been dead, for…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。