in August he will have been working here for ten years 5 вопросов1) Общий вопрос2) Альтернативный вопрос3) Разделительный вопрос4) Специальный

1 Will he have been working here for ten years in August?2 Will he have been working here for ten years in August or in September?3 He will have been working here for ten years in August, won't he?4 Who will have been working here for ten years in August?