Various efforts over the centuries _________ to predict earthquakes to reduce the damage.
A．are being made
B．have been made
C．were made
D．were being made
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◎ 解析
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◎ 知识点
根据n多题专家分析，试题“ Various efforts over the centuries _________ to predict earthquakes to reduce the damage. A．are being madeB．have been madeC．were madeD．were being made…”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。
◎ 相似题
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