2009 全国Ⅰ Paper Question 28 Single-choice Differentiating 2009_全国Ⅰ卷卷 (英语) 29. Edward, you play so well. But I you played the piano. A. didn’t knowB. hadn’t knownC. don’t knowD. haven’t known Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →