They like( playing football).对括号部分提问.__
They like( playing football).对括号部分提问.__
They( were playing football )at that time.(对括号部分提问) ( ) were
They are (playing football now.)括号部分提问
They like playing football.就画线部分提问 -------------------
I like playing football (very much).(对括号部分提问)
i like (playing football) after school.【对划线部分提问】
l like playing football very much.对画线部分提问
Paul like playing football.(对划线部分提问)
l like playing football.(对画线部分提问.playing football)
They like playing football.就playing football 提问
l like playing football (对 playing football 进行提问)
Tom and Bill like playing football对playing football提问