When I entered the step-classroom (阶梯教室), the lecture __________ and the audience __________ attentively.
A．began, listened
B．was begun, was listening
C．had begun, listened
D．had begun, were listening
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◎ 解析
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◎ 知识点
根据n多题专家分析，试题“When I entered the step-classroom (阶梯教室), the lecture __________ and the audience __________ attentively.A．began, listenedB．was begun, was listeningC．had be…”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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