Play on the ground改完否定句

Play on the ground改完否定句 on the play ground 中文 There are students on the play ground.改错 Tom and Jack play games on the ground.同义句 Look!He _____(play) foootball on the ground now. Not play on the ground哪错了? he may be ___(play)on the ground Who likes play football on the ground?这句换对吗? on the ground that这个句型中的ground可以改写成grounds吗?什么时候要改? stant on the ground.怎么改同义句? I see some boys( )(play)on the play ground all the time There’re some children （ ）play on the ground.填playing还是play Suddenly he saw a watch on the ground 改句子Suddenly he saw a watch on the ground 保持原意.Suddenly a watch on the ground ___his ___. look,someone __________ on the ground.what is tlook,someone __________ on the ground.what is the matter?a.play b.is playing c.playing d.is play on the ground We play in the play ground 'The child is playing on the play ground.(的复数形式是） 我们的老师说一定要写in the playground.为什么不能写on the play ground?