Put the verbs in brackets into the future perfect or future perfect continuous. +

1. By 3 o’clock, she … (study) … for six hours.

2. By the end of next month, Sam ….. (finish) the project.

3. He ….. (not/start) painting the kitchen before Tuesday.

4. By the time she arrives in Paris, she ….. (travel) for four hours.

5. I hope I ….. (buy) my own house by the time I’m thirty-five.

6. By Saturday, Lisa ….. (diet) for two weeks.

7. Hopefully, they ….. (learn) everything by the time they sit the exam.

8. By 4 o’clock, I ….. (sit) in the hairdresser’s for three hours.

9. By Christmas, I ….. (work) for this company for eighteen months.

10. By next weekend, Brian ….. (move) house.

11. Hopefully, the builders ….. (finish) building the house by next month.

12. By Tuesday, Alan ….. (sail) for twelve days.

13. By tomorrow morning, she ….. (sleep) for twelve hours.

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Ответы на задание с использованием будущего совершённого времени (Future Perfect) или будущего совершённого длительного времени (Future Perfect Continuous):

1. By 3 o’clock, she will have been studying for six hours.
2. By the end of next month, Sam will have finished the project.
3. He will not have started painting the kitchen before Tuesday.
4. By the time she arrives in Paris, she will have been traveling for four hours.
5. I hope I will have bought my own house by the time I’m thirty-five.
6. By Saturday, Lisa will have been dieting for two weeks.
7. Hopefully, they will have learned everything by the time they sit the exam.
8. By 4 o’clock, I will have been sitting in the hairdresser’s for three hours.
9. By Christmas, I will have been working for this company for eighteen months.
10. By next weekend, Brian will have moved house.
11. Hopefully, the builders will have finished building the house by next month.
12. By Tuesday, Alan will have been sailing for twelve days.
13. By tomorrow morning, she will have been sleeping for twelve hours.

Обратите внимание, что будущее совершённое длительное время (Future Perfect Continuous) используется для выражения действий, которые будут продолжаться до определённого момента в будущем, а будущее совершённое время (Future Perfect) — для действий, которые завершатся к этому моменту.