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Future Perfect Continuous — Yes/‌No question

Put in the correct verb forms into the gaps to make Yes/‌No questions. Use the Future Perfect Continuous.
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he
in opera for 15 years in 2025? (to sing)
Will he have been singing in opera for 15 years in 2025?
  1. 1.
    they
    from rain since morning when the sun comes out? (to hide)
  2. 2.
    the football fans
    the players for an hour when they finally appear? (to wait for)
  3. 3.
    you
    for long when I call you? (to sleep)
  4. 4.
    he
    English for 10 minutes when I stop him? (to speak)
  5. 5.
    our neighbors
    a house for 2 years when they complete? (to build)
  6. 6.
    the teachers
    for a month when they reach an agreement with the government? (to strike)
  7. 7.
    she
    for an hour when I calm her down? (to cry)
  8. 8.
    Sam
    a toothache for a month when he finally goes to the dentist? (to have)
  9. 9.
    we
    for 4 years when I propose her? (to date)
  10. 10.
    he
    since morning when he gets cold? (to ski)
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