some boys are playing ,___ are singing on the playground?这题用

some boys are playing ,___ are singing on the playground?这题用 we are on the playground.look!Some boys are playing football we are on the playground . look some boys are playing footba ;some are playing football on the playground some boys are playing the football on the playground.修改病句 Look!The boys are playing ___ soccer on the playground. A.a the boys are playing soccer on the playground.-------------- a g_____ of boys are playing football on the playground. Look!There ___ some boys on the playground.A.are B.is C.have 1.There are some boys on the playground.T The boys are playing musical chairs on the playground.用what提 The boys are playing football on the playground.(就画线部分提问) ar