Question

Помогите пожалуйста "Грамматика"

Answer 1

1 The USA borders on Canada in the north.
2 How many times have you been to St. Petersburg?
3 It's the first time he has seen a koala in the zoo.
4 When was the British came to Australia?
5 Last year we spent Christmas Day on the beach in Australia.
6 When you go to Sydney, you will be able to see the unusual building of the Opera House.
7 Last year they made a really pleasant journey to Brighton.