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Future perfect or future perfect continuous?

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  • We (go) home by next week.
    We (go) will have gone/'ll have gone home by next week.
  • . In June, my grandmother and grandfather (be) married for fifty years.
    they will have been
  • The sun (not / rise) by 4 o'clock.
    The sun (not / rise) will not have risen/ won't have rise by 4 o'clock.
  • She (sleep) for 10 hours by 11 o'clock.
    She (sleep) will have been sleeping/'ll have been sleeping for 10 hours by 11 o'clock.
  • Drive faster! If you don't hurry up, she (have) the baby by the time we get to the hospital.
    will have had
  • (buy / he) the new house by October?
    (buy / he) Will he have bought the new house by October?
  • They (leave) the classroom by the end of the hour
    They (leave) will have left/'ll have left the classroom by the end of the hour.
  • Margie just called and said she would be here at 8 o'clock. By the time she gets here, we (wait) for her for two hours.
    will have been waiting
  • Come over to my house around 9 o'clock. By then, I (complete) my history essay and we can go see a movie.
    I will have completed
  • By the time you finish studying this course, you (master) all twelve tenses including their passive forms.
    will have mastered
  • Frank just changed jobs again. If he keeps this up, he (change) jobs at least four or five times by the end of the year.
    will have changed
  • By 9 o'clock, we (finish) our homework.
    By 9 o'clock, we will have finished our homework.
  • By the end of the month I (live) in this town for ten years.
    By the end of the month I (live) will have been living/'ll have been living in this town for ten years.
  • By the time we get to Chicago this evening, we (drive) more than four hundred miles. We are going to be exhausted.
    will have driven
  • I have not traveled much yet; however, I (visit) the Grand Canyon and San Francisco by the time I leave the United States.
    I will have visited
  • When Sarah goes on vacation next month, she (study) German for over two years. She should be able to communicate fairly well while she is in Austria.
    She will have been studying
  • By the end of this week, we (work) on the project for a month.
    By the end of this week, we (work) will have been working/'ll have been working on the project for a month.