помогите с английским пожайлуста как можно прытче

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 sees a koala in the zoo. 4. When did the British come 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 unusuall building of the Opera House. 7.Last year they мейд a really pleasant journey to Brighton.