Fill in the Blanks Future Perfect Continuos Online version complete the questions with the correct answer by lucero aguiñaga zambrano 1 have working have travelling been waiting been running have 1 . My mom will traveling for two days by the time I see her . 2 . They'll be exhausted by dinner . They will been playing hockey for seven hours . 3 . Will you have been here for ten years by the time of the Christmas party ? 4 . It's a 24 - hour relay . They'll only have been for half the time by 6pm . 5 . We will not have been long . 6 . I won't working for two years . 7 . Won't they have been for two weeks by then ?