Phong _______ the TV set at the moment. He _______ at it for one hour or soĐoạn văn489/500Phong _______ the TV set at the moment. He _______ at it for one hour or so.is repairing - has worked repairs - has been workinghas repaired - has been working repairs - workedGiải thíchĐáp án đúng là: A