3 Complete the sentences with the correct relative pronoun or 0 if it's possible to leave it out.
1 Russia is a country ______ it is very cold in winter.
2 The weekend is a time ______ people can usually relax.
3 English is a language ______ people speak all over the world.
4 Tennis is a sport ______ has many fans in lots of different countries.
5 New York is a city ______ they make a lot of films.
6 Chris Hemsworth is the actor ______ starred in Thor.
7 August is a month ______ lots of people go on holiday.
8 That's the man ______ wife is famous.