◎ 题干
—What’s the matter? It seems          you’ve caught a cold.
—Oh, I’m just too tired.
A.as ifB.ever sinceC.becauseD.when
◎ 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“ —What’s the matter? It seems you’ve caught a cold. —Oh, I’m just too tired.A.as ifB.ever sinceC.becauseD.when…”主要考查了你对  【并列连词】【从属连词】  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。