they on are games playing playground the
They are playing happily on the playground(are playing happi
连词成句playing,playground,are,games,the,on,pupils
____the moment they are playing on the playground 填介词
They are playing football on the playground 改否定句
the children are playing games on the playground (就playing g
There are many students playing games on the playground 改为同义
There are many studens play /playing games on playground.
;some are playing football on the playground
Lots()children are playing games in the playground.
Are they playing on the playground?(做简略的否定回答)
They are (playing football) {on the playground.}分别对两个括号提问
They are (playing football) on the playground(对打括号部分提问)