London is the most diverse city in the world, with more than 300 languages    16    in the city and  people of 50 nationalities    17    there. What are the causes underlying London’s ethnic diversity? One is that London is a business center so that people all over the world come here to find jobs and    18    money. But the cause that makes people    19    in London is language, because they want their children to build up the    20    in English, which is a great gift and advantage in the global context.    21    cause is surprising. Londoners tend to leave people    22   , and this gives newcomers much space to live their own lives. Finally, food is also an important cause bringing people all over the world to London. Londoner’s    23    for foreign food creates    24    of job for new communities, which invites more foreigners, and at the same time more foreign    25    , into the city.