来自卢福强的问题
thechildrenareplayingfootballintheplayground.(对划线部分提问)划线的是:areplayingfootball
thechildrenareplayingfootballintheplayground.(对划线部分提问)划线的是:areplayingfootball


thechildrenareplayingfootballintheplayground.(对划线部分提问)划线的是:areplayingfootball
thechildrenareplayingfootballintheplayground.(对划线部分提问)划线的是:areplayingfootball
Whatarethechildrendoingintheplayground?