1. I hope you will have gone to bed by eleven. 2. She'll have listened to the poem many times before she understands the words. 3 They'll have got you into trouble before you can say knife. 4. I hope the telegram will have come before they start for the North. 5. The news of their marriage will have reached their village before they get there. 6. She'll have been there many times before she meets him again. 7. They believe the ship will have come back by the end of the navigation. 8. I suppose she'll have made some provisions for Maggie before she leaves for America. 9. They'll have taken their last exam by the 1st of July. 10. He'll have written the last chapter of his new book by the end of the year. 11. By the time you come I'll have cleaned the flat and cooked dinner. 12. By next winter he'll have sold all his things. 13. He'll have left when you arrive. 14. By next mouth he will have written his fourth play. 15. We will have solved this difficult problem by the end of the week. 16. The wind will have dropped by then. 17. When the sun sets I'll have read this book. 18. If you come at 9 they will have had dinner. 19. If you ring me up after 9 o'clock, I will have spoken to the doctor. 20. We'll have traveled twenty miles more before we cross the frontier. 21. Next year we'll have been together for 10 years.