Задайте вопросы к каждому члену предложения. Yes/No, or, Who, What, What, What time, tag-q . He willbe playing a computer game tomorrow at 8 p.m.
He will be playing a computer game tomorrow at 8 p.m. Will he be playing a computer game tomorrow at 8 p.m.? What will he be doing tomorrow at 8 p.m.? What time will he be playing a computer game tomorrow? He will be playing a computer game tomorrow at 8 p.m., won't he?