Literature. Литература.
См. комментарии.
Да, конечно, мы тоже учили их в 6 классе. Поверь, если ты их сейчас не выучишь, потом будут огромные проблемы.
10. What were you doing . . .
11 had been teaching
12. have you been doing. . .
13 have read
14. have you seen
15. I shall be sleeping. . .
16. Have you found. . .
I'm still looking for it.
I have already been looking for it for two hours but I haven't found it yet.
17. have been sailing. . .
18. have been waiting
19. had been writing
would finish
20. found. .
had got up and were waiting for him.
1. I've been painting the room since morning but I've done only half of it.
2. We have already furnished all the rooms.
3. Why are your hands dirty? - Oh, I've been washing the windows since 9 o'clock.