Choose the correct preposition

1) The weather in Ireland ... winter is often cold and windy. 2) There are thousands of stalls ... the Chatachak Market. 3) People are dancing ... the streets. 4) Many people dance ... the Rio Carnival. 5) Let's go ... a tour around the city. 6) I'm tired ... walking. Let's go for a coffee. 7) There are lots of souvenirs to choose ... .