38、(单选、2.5分) ________ about it earlier, we could have warned people of the danger. A、Would we know B、Should we know C、Have we known D、Had we known

38、(单选、2.5分)
________ about it earlier, we could have warned people of the danger.
A、Would we know
B、Should we know
C、Have we known
D、Had we known

出自：河北工程技术学院大学英语1

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10245403】个 (题库试题定时更新)