根据n多题专家分析，试题“ Everything he _____ to his country.A．had was contributedB．had been contributedC．had to be contributedD．had contributed…”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“ Everything he _____ to his country.A．had was contributedB．had been contributedC．had to be contributedD．had contributed”考查相似的试题有：
