Who was ( ) the ball.1.playing 2.play 3.played 4.plays
问题描述:
Who was ( ) the ball.1.playing 2.play 3.played 4.plays
答
填 playing
谁(那时)正在踢球?was��˭�Ĺ�ȥʽ����������is�Ĺ�ȥʱ��