Заполни пропуски в предложениях в соответствии с правилами.

1. Some behaviour rules seem strange for you, don't they? 2. In Britain people don’t congratulate each other on national holidays, do they? 3. Foreign visitors should note how loudly people around them are talking, shouldn’t they? 4. In Britain it isn’t considered bad manners to eat in the street, is it? 5. Religious holidays can become national ones in some countries, can't they? 6. It is not polite to stare at another person, is it? 7. Different peoples have different greeting habits, haven't they? 8. Foreigners make friends slower, don’t they? 9. National holidays and celebrations must unite people, mustn't they? 10. It is a bad idea not to queue in line, isn’t it?