4. закончите вопросы (tag questions). 0) let`s buy russian souvenirs, shall we? 1) you have never been to st petersburg, 2) there are many common behaviour rules in different countries, 3) let`s start a new tradition,

1) You have never been to St Petersburg, have you?
2) There are many common behaviour rules in different countries, aren't there?
3) Let`s start a new tradition, shall we?