问题 更新时间2023/4/3 12:59:00 12[单选题,1.3分] ________ he known that it was to be the president’s last press conference, he would have filmed the occasion.A.ShouldB.IfC.WereD. Had 答案 登录 注册 参考答案:D 出自:联大 >> 河南大学-本科英语