◎ 题干

Mr. Smith found that gas         from the pipe when he came back because we forgot to switch off. But at last we were lucky to escape           .
A.escaped, being punishedB.was escaping, being punished
C.escaped, punishmentD.was escaping, punishing
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Mr. Smith found that gas from the pipe when he came back because we forgot to switch off. But at last we were lucky to escape .A.escaped, being punishedB.was …”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。