2015 Jiangsu Question 19 Single-choice Differentiating 2015_江苏卷 (英语) 18. (1分)$It might have saved me some trouble __________ the schedule$. ( ) A. did I knowB. have I knownC. do I knowD. had I known Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →