根据n多题专家分析，试题“He told us he _____ a concert _____ .A．had attended ... three days beforeB．attended ... three days agoC．would attend ... since three daysD．was attendin…”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
与“He told us he _____ a concert _____ .A．had attended ... three days beforeB．attended ... three days agoC．would attend ... since three daysD．was attendin”考查相似的试题有：
