◎ 题干

—Why didn’t you pick up the sunglasses?
—I _____ it, but I didn’t carry that much money.
A.could buyB.should buyC.must have boughtD.could have bought
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Why didn’t you pick up the sunglasses?—I _____ it, but I didn’t carry that much money.A.could buyB.should buyC.must have boughtD.could have bought…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。