1. He can speak French
2. He doesn't know German.
3. They live in China.
4. She didn't know that man.
5. I don't understand the teacher.
6. The children aren't sleeping, are they?
7. He can play computer games.
8. We don't know him.
9. She sends him e-mails every day.
10.Did Robin write a letter to his friends?
11. If Misha doesn't help Robin, Robin will not go back to his time.
12. There's much salt in the soup.
13. Everybody likes to swim in the sea.
14. You had to help her, hadn't you?
15. His grandfather was a brave old man.
16. They'll go to the Black Sea next year.
17. Нет ошибки
18. I saw him at 6 o'clock yesterday.
19. Нет ошибки
20. Нет ошибки.
21. Нет ошибки
22. Is a torch cheaper than a penknife?
23. Нет ошибки.
24. We were watching TV when they came.
25. What were you doing yesterday at 5 o'clock?
26. They were in London last year.
27. What have you already done?
28. We have never played this game.