-----They used to be good friends, but now they are like strangers. ----- How _____ this ______?
A．were; come about
B．did; come about
C．were; taken place
D．were; happened
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◎ 知识点
根据魔方格专家分析，试题“-----They used to be good friends, but now they are like strangers. ----- How _____ this ______?A．were; come aboutB．did; come aboutC．were; taken placeD．were…”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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