— Alvin, are you coming with us? — I'd love to, but something unexpected.
A．has come up
B．was coming up
C．had come up
D．would come up
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◎ 知识点
根据n多题专家分析，试题“— Alvin, are you coming with us?— I'd love to, but something unexpected.A．has come upB．was coming upC．had come upD．would come up…”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。
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