Lileiwithhisgrandpaw的精选

问题详情： 单项填空；从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Lileiwithhisgrandpawentfor      walkafterplaying      chessfortwohours.A.a;the          B.不填;the  C.the;...