网址：http://m.1010jiajiao.com/timu3_id_2610684[举报]
What are you doing? I’m ________ the ball．
A．play
B．playing
C．played
What are you doing ________?
A．every day
B．once a week
C．next week
What are you doing? I’m ________．
A．dance
B．dancing
C．dances